What is the difference between sexual and asexual reproduction Class 12?
Answers
Sexual reproduction involves the production of male and female gametes, which combine to form a zygote. Asexual reproduction involves the production of offspring from a single parent without the fusion of gametes.
The zygote grows and develops into a new organism that is genetically similar but not identical to its parents. This is because the genetic combination of the two parents results in the offspring having a unique genetic code. Sexual reproduction allows for genetic variation, which can be beneficial to a species as it allows them to adapt to changing environments.
Asexual reproduction involves the production of offspring from a single parent without the fusion of gametes. The offspring created is genetically identical to its parent and is referred to as a clone. Asexual reproduction does not create genetic variation, but it does allow for rapid reproduction and population growth. The main difference between sexual and asexual reproduction is the way in which genetic material is combined.
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Related Questions
quantification of gait parameters in freely walking wild type and sensory deprived drosophila melanogaster
Answers
Quantification of gait parameters in freely walking wild type and sensory deprived drosophila melanogaster. True.
The analysis of locomotion in massive animals, drastically mammals, often is based on the position of visual marks generally joints that may be without problems detected and tracked.
However, in smaller insects including Drosophila, any such method becomes no longer most effective technically tough however is likewise probable to disturb on foot. Such challenges have a more distinct examination of the that incorporate walks conduct to overcome those boundaries and the biomechanical features on foot in Drosophila we became to an optical effect referred to as general internal mirrored image.
However, if a denser material, which includes the tarsus of an insect leg, contacts the surface of the glass, then the domestically overall internal mirrored image will scatter the light.
Disclaimer:- your question is incomplete, please see below for the complete question.
Quantification of gait parameters in freely walking wild type and sensory deprived drosophila melanogaster. T/F
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when an individual has a circulating inhibitor (antibody directed against a factor), which choice would reflect mixing study results for the test affected?
Answers
When an individual has a circulating inhibitor (antibody directed against a factor), the mixing study results for the test affected by a circulating inhibitor would reflect reduced clotting activity.
A mixing study is used to detect the presence of a circulating inhibitor, which would be present in the patient's sample. The mixing study measures the clotting activity of a sample before and after adding normal plasma to it.
Plasma has antibodies that help fight infection, protein (albumin), and fibrinogen.If the patient's sample has a circulating inhibitor, the clotting activity of the sample will be reduced after adding normal plasma.
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What are normal blood sugar 2 hours after eating for non diabetics?
Answers
70 to 90 mg/dL
Explanation:
What is the anatomy of a leaf
Answers
Answer:
Typically, a leaf consists of a broad expanded blade (the lamina), attached to the plant stem by a stalklike petiole. In angiosperms leaves commonly have a pair of structures known as stipules, which are located on each side of the leaf base and may resemble scales, spines, glands, or leaflike structures.
Explanation:
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bianary stars can be used to determine the blank of a star.
Answers
Binary stars provide a powerful tool for determining the masses of stars, which is an important parameter for understanding their structure, evolution, and other properties.
What are binary stars?
Binary stars can be used to determine the mass of a star. The reason for this is that binary stars are two stars that orbit around a common center of mass. The mass of each star affects the orbit of the other, and by studying the motion of the two stars around each other, astronomers can determine their masses.
The basic idea is that if two stars are in a binary system, they will orbit around their common center of mass. If one star is much more massive than the other, the center of mass will be closer to the more massive star. This means that the less massive star will appear to move in a larger orbit around the center of mass, while the more massive star will move in a smaller orbit.
By measuring the size and speed of these orbits, astronomers can calculate the masses of the two stars. This is because the size of the orbit is related to the total mass of the system, and the speed of the stars is related to the masses of the stars and the size of their orbits.
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Describe the four levels of protein structure. For each level, include: the name of that level of structure how the protein is arranged at that point in time Answer using 4 to 5 complete sentences.
Answers
here are the structures i hope it helps
Answer:
primary, secondary, tertiary, and quaternary.
Explanation:
four levels of protein
1. primary structure of a protein: this is the number and sequence of amino acids held together by the peptide bond in a polypeptide chain.
2. secondary structure of a protein: this described the interaction of the sequence of amino acids in a polypeptide chain, and the bond formed is hydrogen bond.
3. tertiary structure of a protein this is a 3 dimension structure of a protein in the polypeptide chain and the bond formed are hydrogen bond, ionic bond and disulfide bond.
4. quartenary structure of a protein this is a combination of more than one structure which is primary structure, secondary structure and tertiary structure. bond formed are disulfide bond and so on.
The new plant produced by the technique of layering must remain attached to the stem of the original plant.
True False
Answers
False. The new plant produced by layering does not have to remain attached to the stem of the original plant.
What is layering?Layering is a method of vegetative propagation of plants in which a part of a plant such as a stem or a branch is pegged to a substrate for that part to develop its own root and establish before it is eventually cut off and transplanted to become a new plant.
Layering can be done in 5 ways. These include
Tip layeringSimple layeringCompound layeringMound layeringAir layeringWhatever the method that is used, the new plant only remains attached to the original plant for some time after which it is usually detached or cut off to become an individual plant on its own.
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Answer: it’s false I think?
Explanation: I hope this helps!!!
whats Part of the neuron that receives messages
Answers
The part of the neuron that receives messages are called Dendrites .
Dendrites are the branching, tree-like structures that extend from the cell body of a neuron. They are specialized for receiving signals from other cells, such as other neurons, and for transmitting signals to the cell body. They are typically composed of an array of tubular structures known as microtubules and contain a variety of protein molecules that allow them to detect and process signals. Dendrites are essential to neuronal communication, as they allow neurons to receive information from other neurons and integrate this information with the neuron’s own activity.
Therefore, the dendrites are the part of the neuron that specialize in receiving messages from other neurons.
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Give several examples associated with trees and fish of how species richness varies at the global scale.
Answers
Here are several examples of how species richness may vary for trees and fish across different regions of global scale; Trees; Tropical Rainforests, Boreal Forests, and Island Ecosystems. Fish; Coral Reefs, Freshwater Rivers, and Polar Regions.
Trees; Tropical rainforests, such as the Amazon Rainforest in South America and the Congo Basin in Africa, are known for their exceptionally high species richness of trees.
Boreal forests, also known as taiga, are found in high latitudes, such as in northern North America, Europe, and Asia. These regions have lower species richness of trees compared to tropical rainforests, with fewer tree species adapted to the cold and harsh environmental conditions.
Islands, such as the Galapagos Islands and Hawaii, are known for their unique tree species richness. Due to their isolation, islands often have distinct tree species that have evolved in isolation, resulting in high endemism and unique plant communities.
Fish; Coral reefs, found in tropical and subtropical waters around the world, are known for their high fish species richness. Coral reefs provide diverse habitats for a wide variety of fish species, including colorful reef fish, large pelagic species, and rare endemic species.
Freshwater rivers and lakes around the world can exhibit varying levels of fish species richness. For example, the Amazon River in South America is known for its high fish diversity, with numerous fish species adapted to the complex riverine ecosystems.
Polar regions, such as the Arctic and Antarctic, have relatively low fish species richness due to the extreme environmental conditions and limited availability of suitable habitats.
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homologous chromosomes line up with their pair for crossing over in meiosis. how would you know if two chromosomes were homologous to each other?
Answers
A homologous pair of chromosomes has two identically sized and shaped chromosomes that are highly similar to one another.
What are homologous chromosomes?The fact that they share the same type of genetic information i.e., have the same genes in the same places is crucial.
Through homologous recombination and crossover at chiasmata between non-sister chromatids, DNA exchanges between homologous chromosomes take place.
The homologous pairs then arrange themselves at the metaphase plate. Then, during anaphase I, the homologous chromosomes split apart and moved to the cell's opposite poles.
Therefore, homologous chromosomes share the same type of genetic information.
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which of the following organelles are found in plant cells but not animal cells
Answers
Answer:
The plant cells have cell wall, plastids, chloroplasts. These organelles are NOT present in animal cells.
What is the difference between the appearance of blood cells at 40×× magnification and those at 400×× magnification?
O At the higher magnification, the blood cells will appear a different color since there is more contrast.
O Each blood cell will appear larger at 400×× than at 40××.
O Each blood cell will take up a smaller portion of the larger field of view at the higher magnification.
O Each blood cell will appear smaller at 400×× than at 40××.
Answers
Blood cells in 400xx magnification will appear larger than that in 40xx magnification. The correct option is option B, each blood cell will appear larger at 400×× than at 40××.
Blood cells are best viewed under a biological microscope with a minimum of 400x magnification.
At 40x magnification, objects of 5mm or 5000-micron size can be seen.At 100x magnification, objects of 2mm or 2000 micron size can be seen. At 400x magnification, objects of 0.45mm, or 450 microns size can be seen.At 1000x magnification, an object of 0.180mm, or 180 microns in size can be easily seen.The smaller the dimension of the object, the higher magnification should be used.
Therefore, each blood cell will appear larger at 400xx than at 40xx.
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Major cities across the united states are affected by human activities that contribute to hazardous tropospheric ozone. some cities are affected more than others based on both environmental conditions and city characteristics. the table provides information about the 2018 tropospheric ozone in four major cities in the united states as well as the environmental conditions and population density.
Answers
The table provided offers a snapshot of the 2018 tropospheric ozone levels in four major cities in the United States, as well as the corresponding environmental conditions and population densities. By looking at this data, we can see that some cities are indeed more affected than others.
It is true that major cities across the United States are affected by human activities that contribute to hazardous tropospheric ozone. However, the extent of this impact varies from city to city based on a number of factors, including environmental conditions and city characteristics. For example, cities with higher population densities and more industrial activity may be more prone to experiencing higher levels of tropospheric ozone.
For instance, Los Angeles has the highest average ozone level among the cities listed, likely due in part to its high population density and car culture.
Overall, it is important for cities to take steps to mitigate their contributions to tropospheric ozone, such as reducing industrial emissions and promoting alternative forms of transportation. By doing so, they can help ensure a healthier environment for their residents and visitors alike.
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examine the table, if a mutation occurred in the indicated region, which areas would you expect the Pitx1 gene.” check all that apply
Answers
Mutation result in changes in the nucleotides sequence in genes, so a mutation of the Pitx1 gene will change the nucleotide sequence in the gene.
What is a mutation?A mutation refers to a change that occurs in the sequence of nucleotides in DNA molecules.
Since gene are regions of a DNA molecule that codes for a protein or gene product, a mutation will affect the gene product.
Therefore, for the Pitx1 gene, a mutation will change the nucleotide sequence in the gene.
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Which is a characteristic of a dog that is most likely a result of its environment? 1. its color 2. the length of its ears 3. its food preference 4. its ability to see in the dark
Answers
Answer:
It's food preference
Explanation:
Depending on the food that is given to the dog, it's taste will change
Which is a feature of a cladogram?
A The characteristics must be shared among the organisms.
B The characteristics must be different among the organisms.
C It must contain at least three different shared characteristics.
D It must contain at least three different groups of organisms.
Answers
Answer:
C
Explanation:
What is used for building structures in the body they can also be enzymes?
(it’s either lipids or carbohydrates) WILL GIVE BRAINLIEST
Answers
Answer:
The correct answer is - proteins.
Explanation:
Enzymes are made up of the long chains of amino acids that are linked by the peptide bonds that make a polypeptide chain known as proteins. Proteins are the building block of the enzyme and the building of thevarious structures in the body.
Enzymes are made up of two protein that also plays as the role of a biological catalyst whereas protein only plays role in forming different structure and performing functions.
HElP EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Answers
Bread = carbohydrate
Fructose = carbohydrate
Enzymes = proteins
RNA = nucleic acid
Monosaccharide = carbohydrate
Cholesterol = lipid
Polysaccharide = carbohydrate
Amino acid = protein
Unsaturated fat = lipid
Glucose = carbohydrate
Saturated fat = lipid
I think this is right. I hope this helps.
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How did the owl get energy from the Sun (made their own energy, ate producers, ate consumers)?
Answers
Answer:
ate consumers
Explanation:
Answer:
The owl got energy from producers, like plants
I am sorry if I'm wrong.
Directions: Choose any river in the world. Conduct an internet search and list the following information on your river.
1. Name of river, its source (beginning of river), and outlet (where the river flows to)
2. Location of the source (state, county, country, etc.) and its watershed (flow pattern). Include states or areas the river flows through, including major cities or lakes
3. Direction the river flows, names of tributaries that join the river
4. Names of any structures that affect the river's flow (dams, levees, etc.)
5. What is the condition of the water in the river? List and describe any environmental concerns.
Please help!!
Answers
In India, state Uttarakhand At Gomukh, the end of the Gangotri Glacier, in the Himalayan Mountains, the Ganges River begins. The Bhagirathi River's crystal-clear waters are formed when this glacier's ice melts.
What is the river?The Bhagirathi River officially becomes the Ganges River when it joins the Alaknanda River as it runs over the Himalayas.
On the Ganga River, 24 dam or river barrage constructions were finished. Tehri, Haridwar, Rihand, and other well-known dams on the Ganga are only a few examples.
Therefore, one thousand times more copper parts per million are discharged in the Pandu than in unpolluted water before it ever reaches the Ganga.
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the populations of some endangered animal species have stabilized or increased in numbers after human intervention. an example of a species that is still endangered and needs further assistance to recover is the
Answers
A species that are still endangered and needs further assistance to recover is the snow leopard.
An endangered species is one that "is in risk of extinction over all or a considerable part of its range," according to the Endangered Species Act (ESA). Under Section 9 of the ESA, any sort of "take," such as injury, harassment, collection, or death, are automatically prohibited in order to conserve endangered species. These regulations include a few limited exceptions that are detailed in Section 10 of the ESA. The Gulf of Mexico and the whole U.S. Atlantic coast are home to Kemp's ridley turtle, which is regarded as the smallest marine turtle in the entire world.
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Fetal alcohol syndrome is the leading cause of in the Western world. OA. PIntellectual impairment OB. Infertility OC. Multiple births OD. Miscarriages QUESTION 10 One reason that dieting may not work is OA. a high BMR. OB. an insensitive BMR. OC. a low BMR. OD. None of the above.
Answers
Fetal alcohol syndrome is the leading cause of intellectual impairment in the Western world. Hence option A is correct.
Fetal alcohol syndrome is the leading cause of intellectual impairment in the Western world. This is the accurate statement related to the given question. It is a condition in which a baby is born with mental and physical defects due to the mother's alcohol consumption during pregnancy.
Let's look at the reason why dieting may not work: Dieting may not work due to a low BMR. The Basal Metabolic Rate (BMR) is the number of calories the body requires at rest to perform its basic functions such as breathing, circulation, and cell production. As a result, an individual with a low BMR has a slower metabolic rate, making it more difficult to burn calories and lose weight. Therefore, option C is the correct answer: a low BMR.
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ASAP What occurs after the homologous pairs are separated?
A. The sister chromatids separate.
B. Spindle fibers attach to the chromosomes.
C. Haploid cells are formed.
D. The nuclear envelope reforms.
Answers
Answer:
A
Explanation:
the sister chromatids separate
After the separation of homologous pairs, the sister chromatids are subsequently separated during meiosis II.
What is Homologous pair?Homologous pairs may be defined as those chromosomes which are very identical to one another and have the same size and shape.
In meiosis I, the separation of homologous pairs occurred. After this process, the sister chromatids are separated in meiosis II.
This separation leads to the production of a total of four products having the half number the chromosomes as compared to the original cell.
Therefore, the correct option for this question is A.
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what percentage of the human genome is estimated to consist of protein-coding genes? group of answer choices
Answers
The percentage of the human genome that consists of protein-coding genes is relatively small. While the human genome is composed of approximately 3.2 billion base pairs, protein-coding genes account for only about 1-2% of the total genome.
This means that protein-coding genes make up roughly 20,000 to 25,000 genes out of an estimated 20,000 to 25,000 total genes in the human genome. The remaining portion of the genome, often referred to as non-coding DNA, includes regulatory regions, introns (non-coding regions within genes), repetitive sequences, and other elements that contribute to genome organization and function.
Recent research has shed light on the importance of non-coding regions in gene regulation and other biological processes, highlighting the complexity of the human genome beyond its protein-coding genes.
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which nervous system division has skeletal muscles as effectors?
Answers
The Somatic Nervous System is the division of the nervous system that has skeletal muscles as effectors.
Somatic Nervous System is responsible for controlling voluntary movements of the body and conveying sensory information from the skin and joints to the brain. It consists of motor neurons that travel from the brain and spinal cord to the effector organs, which are usually skeletal muscles.
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The somatic nervous system is the division of the nervous system responsible for the voluntary control of skeletal muscles.
This system consists of motor neurons that directly innervate the skeletal muscle fibers and provide the ability to move the body. The motor neurons are activated by the motor cortex of the brain and also receive input from the spinal cord. The somatic nervous system is also responsible for sensory functions such as proprioception, or the awareness of the position of one's body parts. In summary, the somatic nervous system is responsible for the voluntary control of skeletal muscles, as well as other sensory functions.
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Which type of micro-organism makes its own food, like plants do?
a - algae
b - protozoa
c - bacteria
d - yeast
Answers
Answer:
algae. I just looked it up. algae are autotrophs meaning they make their own food. I hope this helps!
Answer:
algae is your answer
Explanation:
hope help yiu
PLZ PLZ
When the Linnaean system of classification was first developed in the early 1700s, it only had two kingdoms for living things, the plant and animal kingdoms. Three more kingdoms have been added since then, as well as a higher division of three domains. Why are we still using this system if we have to keep changing the way it is organized? (4 points)
Group of answer choices
The general system still works despite all the changes each generation of scientists has added.
Each change represents new species that have evolved since the system was developed.
The changes reflect increases in our knowledge of the structure and operation of living things.
It has been used for so long that it would be difficult to change to a different one.
Answers
Answer:
2nd one is answer
Explanation:
hope this helps :)
discuss if the glycocalyx is found in bacteria and human cells is more important for survival in prokaryotic or eukaryotic cells?
Answers
Answer:
Bacteria and human cells have a similar structure, but they are different in many ways. Bacteria are prokaryotic while humans are eukaryotic. Prokaryotes do not have a nucleus while eukaryotes do. Bacteria can be found everywhere, but humans cannot be found everywhere because we need to eat food to survive and bacteria can survive without food.
Explanation:
can someone please tell me what bug this is?
Answers
Answer:
kinda looks like a cricket or grasshopper prob a cricket tho
Explanation:
Compare the processes important to obtaining food and oxygen and removing the
byproducts of cellular respiration.
Answers
The process through which organisms combine oxygen with food molecules, directing the chemical energy in these substances toward life-sustaining processes, is known as cellular respiration. As carbon dioxide and water are released during the process of breaking down sugar or glucose molecules to produce energy. Carbon dioxide, which is exhaled while breathing, and water, which is released during sweating and urination, are the waste products.
Cellular respiration is the process by which biological fuels are transformed into a form that can be oxidized in the presence of an inorganic electron acceptor, such as oxygen, to produce a sizeable amount of energy that drives the primary production of ATP.
Cellular respiration can occur either anaerobically (without oxygen) or aerobically (with oxygen) (without oxygen). By combining glucose and oxygen during aerobic cellular respiration, ATP is produced, which the cell can use. Both water and carbon dioxide are generated as byproducts.
Accordingly, we can say that cellular respiration is the mechanism by which organisms mix oxygen with food particles, directing the energy in these substances toward life-sustaining processes. Water from sweating and urination as well as carbon dioxide, which is exhaled when breathing out, are among the waste products that are released.
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