If Hani has type A blood and his mother has type B blood, which of the following is the most likely genotype of Hani's father?
A) IBIB
B) IBi
C) ii
D) IAIA
D
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Recall from the text the example of cell communication in Streptococcus pneumoniae: the rate of DNA uptake by pneumococcal cells increases sharply when they are at high density due to changes in gene expression brought about by signaling between cells
If the pneumococcal cells did not express receptor protein, how would the rate of DNA uptake be affected when the cells reach high density? A. There would be no change in the rate of DNA uptake. B. There would be a larger than normal increase in the rate of DNA uptake. C. There would be a smaller than normal increase in the rate of DNA uptake. D. There would be a decrease in the rate of DNA uptake.
Conifers have been very successful members of the gymnosperms. What are some of the adaptations that have contributed to their success?
What will be an ideal response?
A bear at a national park has discovered that if it can open the lid of the trash cans, it is likely to find tasty food inside. Soon it is trying to open the trash cans all over the park. What mechanism of learning has occurred?
A. classical (Pavlovian) conditioning B. habituation C. operant conditioning D. air conditioning Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about different learning mechanisms? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Four of the five answers listed below are components of a nucleotide. Select the exception
a. pentose sugar b. amino acid c. cytosine d. phosphate group e. adenine