If a very short gene consisted of just 60 bases, the protein made from the gene would be about _________ amino acids long.
Fill in the blank(s) with the appropriate word(s).
Answer: 20
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A couple visits a fertility clinic to determine the basis of their difficulty in conceiving a child. They are surprised to hear they will both be tested for levels of two of the same hormones, which play roles in the ovarian cycle and sperm production. Which hormones are they?
A. adrenocorticotropic hormone (ACTH) and corticotropin-releasing hormone (CRH) B. insulin and glucagon C. oxytocin and luteinizing hormone (LH) D. follicle-stimulating hormone (FSH) and luteinizing hormone (LH) 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 sex hormones? 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?
Four of these statements about master genes are true. Which statement is not true?
a. They orchestrate layers of development. b. They are highly conserved over evolutionary time. c. Mutations within these are frequently devastating. d. They are highly variable in their sequences between species. e. Mutations usually result in changes in body plan.
Compare and contrast slime molds and water molds
What will be an ideal response?
Attenuation is a transcriptional control mechanism that relies on
a. attenuator molecules binding to mRNA. b. effector proteins to control the binding of RNA polymerase. c. transcriptional feedback inhibition. d. the secondary structure of the mRNA leader.