Describe the basic structure of a nucleosome. What is the role of histone H1?
What will be an ideal response?
Nucleosomes are composed of four different histone molecules, each of which exists twice, thus forming an octamer. Histone H1 is between nucleosomes and is associated with linker DNA.
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In the Calvin cycle, carbon dioxide molecules are reduced by the addition of electrons carried from the light reactions by
A. NADP+. B. oxygen. C. NADPH. D. ATP. E. water.
With anorexia nervosa a person is not eating
enough to keep their weight within ___ percent of normal.
a. 2 b. 5 c. 10 d. 15 e. 25
The comparison between the number of human genes and those of other animal species has led to many conclusions, including that _____
A) the density of the human genome is far higher than in most other animals B) the number of proteins expressed by the human genome is far more than the number of its genes C) most human DNA consists of genes for protein, tRNA, rRNA, and miRNA D) the genomes of most other organisms are significantly smaller than the human genome
At a certain point in the flowering process, shoots become committed to making a flower. This is called
A. phase change. B. apomixis. C. floral determination. D. bilateralism. E. competence.