What are Hox and MADS genes, and what do they have in common?
What will be an ideal response?
Hox genes are animal genes that share a homeobox and a common ancestor and that regulate developmental processes. MADS are plant genes whose binding domain is a MADS box. Hox and MADS genes have similar functions in that they both encode transcription factors, but they are not homologous genes. In addition, unlike Hox genes, MADS-box genes are not clustered in the genome.
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Imagine you are examining a small mammal that lives under desert conditions and is water deprived. You would predict that levels of the antidiuretic hormone (ADH) in its blood would be
A. high, and that its urine would be more concentrated than its blood. B. high, and that its urine would be less concentrated than its blood. C. low, and that its urine would be more concentrated than its blood. D. low, and that its urine would be less concentrated than its blood. E. high, and that its urine would be no more concentrated than its blood.
The binding site for an antigen is located in which region of an antibody?
1.Between the variable region of the light chain and the variable region of the heavy chain. 2.Between the variable region and the constant region of the light chain. 3.Between the variable region and the constant region of the heavy chain. 4.Between the constant region of the light chain and the constant region of the heavy chain.
Which of the following are the naturally occurring obstacles scientists face when determining morphology for reconstructing phylogenetic trees?
A. I. Polymorphism B. II. Mimicry C. III. Convergent evolution D. IV. Camouflage E. All of the above F. I, II, and III G. I and II
According to the doctrine of natural rights:
A) people behave in ways that allow them to obtain favorable outcomes. B) all persons are created equal and are entitled to the same opportunities and protections. C) inalienable rights are considered to be self-evident and universal. D) inalienable rights cannot be surrendered by citizens to the sovereign.