Challenging Biology Problems with Detailed Answers

Genes often contain large regions that are NOT included in translation. These sections are called
1 Answer
A student was observing slides of cell division. In one of the slides, he noticed loosely coiled chromatin depicting DNA duplication. Which phase of the cell cycle could it be? A. S phase B. Metaphase C. M phase
1 Answer
Plsss I need help answer all the questions I need this before 2:00pm
2 Answers
When was Amoebic Dysentery discovered and what are all the symptoms?
1 Answer
How does the ozone layer affect life on Earth? (Site 1)
2 Answers
The head should be positioned in the of the body.
1 Answer
what is the difference between hatcheries and fisheries
2 Answers
An eating disorder is an illness in which people
2 Answers
Which undefined geometric term can be described as a one-dimensional set of points that has no beginning or end?
1 Answer
Which of these is a characteristic of prokaryotes? They have a nucleus. They are always unicellular. They are larger than eukaryotes. They have membrane-bound organelles.
2 Answers
HOW CAN WE BE GOOD AN CHEERFUL
2 Answers
How would the human population be different if crossing over did not happer during meiosis?
2 Answers
A lethargic 22-month old black female was presented by her mother to the emergency room at 2:15 am on a Sunday. The child had a history of a runny nose, hoarse cough and low-grade fever (~99F) for the past 48 hours. The mother was concerned about the forced and noisy breathing of the child. The pediatrician examined the child and found cloudy eyes and mild inflammation of the ears, but no overt signs of bacterial infection (no significant changes in the eardrums). The throat of the child was red and coated with mucus. The larynx was swollen and raw.The physician performed a rapid Strep Test*, and found it was negative. Throat swabs were taken for culture. The physician placed the child in a room with a warm vaponzer for about 30 minutes. This dramatically improved the breathing of the child. rapid Strep test* is used in the diagnosis of bacterial pharyngitis caused by group A streptococci (GAS), sometimes termed strep throat. Questions:1. What is the presumptive diagnosis for this case? 2. Will the throat cultures likely show evidence of Streptococcus pyogenes? How about Staphylococcus aureus? 3. Do you believe that this is a bacterial or viral disease? Why? 4. What further treatment might be indicated for this case?
1 Answer
Pls help Choose the answer that has the terms in order, from the smallest grouping to the largest grouping. a. population, community, ecosystem b. ecosystem, community, population c. community, ecosystem, population d. ecosystem, population, community
1 Answer
do most mutations generally cause the development of new traits found in organisms?
2 Answers
Catching fish faster than they can breed is called: A. Intertidal zone B. Tilapia C. Overfishing D. Catch-release
2 Answers
Which best describes a birds role as it eats seeds?parasitepredatorhabitatniche
2 Answers
Picture the morphology of an average soapberry bug from a rain tree population and compare it to the morphology of its new food source, balloon vine seeds. This average bug was taken from a population containing a range of sizes. (a) Are large, small or average bugs more likely to have relative fitness on the new food source?(b) List one change in bug morphology that you would reasonably expect in bug populations that have been living on golden rain trees. (c) List one change in behavior that you would reasonably expect in bug populations that have been living on golden rain trees.(d) Soapberry bugs are small relative to their host plants, and the bugs vary in their abilities to disperse. Although they have wings, many soapberry bugs have developed flight muscles and walk more often than they fly. In davis, where both balloon vines and golden rain trees are grown, would a dispersing bug likely have higher fitness than one with less developed flight muscles? Explain your answer.
1 Answer
In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome. Red green color blindness is caused by an X-linked recessive allele. Suppose a colorblind man and a normal woman with no family history of color blindness married and had a daughter who was colorblind and had Turner syndrome. 1. Which event could have given rise to this offspring?A) Nondisjunction at meiosis II in the mother. B) Nondisjunction at meiosis I in the father. C) Nondisjunction at meiosis l in the mother. D) Nondisjunction at meiosis II in the father. E) Nondisjunction at either meiosis I or meiosis II in the mother.
1 Answer
Why does tempreture increase when the amount of carbon dioxide or methane in the earth system increase?
1 Answer
Do you think percent daily value (% DV) is a useful tool, even for people who don't consume a 2,000 calorie diet? Explainyour response
2 Answers
What is a vaccine made out of?
2 Answers
Which statement explains Mendel's law of segregation?A. Two alleles for a trait separate during meiosisB. Two alleles that were segregated come together during meiosisC. Alleles if the same trait segregate only during mitosisD. Alleles of a trait can never be separated from each other
2 Answers
Who would win in a fight?...A silverback gorilla or 4 Navy Seals?
2 Answers