A strain of bacteria containing F? factor genes is called a
A. monozygote.
B. heterozygote.
C. homozygote.
D. merozygote.
E. hemizygote.
D. merozygote.
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Oxidation of very long fatty acids occurs in the
A) mitochondria. B) peroxisomes. C) lysosomes. D) smooth endoplasmic reticulum. E) residual bodies.
In 1998, researchers found that genes similar to the Drosophila gene tinman are necessary for heart development in vertebrates. What can you conclude about the ancient bilaterian ancestor of insects and vertebrates over 500 million years ago?
A. The fly species that eventually gave rise to vertebrates used tinman to make a heart. B. Something about heart development requires a gene to have a tinman-like sequence, but the vertebrate and invertebrate genes arose by convergent evolution -- so the ancestor had a similar but not homologous gene. C. The ancient ancestor lacked a heart, but already had a tinman-like gene. D. The ancestor had a heart-like structure that was specified by a tinman-like gene. 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 the tinman gene? 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? Reflect 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?
The binding of a positive allosteric regulator molecule will ________.
A. decrease the ability of the substrate to bind to the catalytic site B. increase the ability of the substrate to bind to the catalytic site C. increase the ability of the substrate to bind to the allosteric site D. decrease the ability of the substrate to bind to the allosteric site
During eukaryotic transcription, TFIID recognizes and binds the ________ box in the DNA
Fill in the blank with correct word.