#Question id: 27001
#Unit 10. Ecological Principles
#Question id: 10382
#Unit 6. System Physiology – Plant
Ureides are
#Question id: 2899
#Unit 2. Cellular Organization
The H3.H4 tetramers and H2A.H2B dimers each interact with a particular region of the DNA within the nucleosome.
I. Histone H3.H4 tetramers occupy a key position in the nucleosome by binding the middle and both ends of the DNA.
II. The amino-terminal region of H3 most proximal to the histone-fold region forms a fourth a-helix that interacts with the final 13 bp at each end of the bound DNA.
III. The relatively short length of DNA bound by H2A.H2B dimers is sufficient to prepare the DNA for H3.H4 tetramer binding.
IV. The H3.H4 tetramer forms the bottom part of the histone octamer located across the disc from the DNA ends whereas two H2A.H2B dimer occupies the top part.
Which of the following represents the correct binding of the histones with the DNA?
#Question id: 3862
#Unit 3. Fundamental Processes
The largest gene characterized to date is:
#Question id: 3388
#Unit 11. Evolution and Behavior
This graphical presentation emphasizes following important consequences of the Hardy-Weinberg principle.
a. The frequency of heterozygous is highest when p equal to q
b. Rare alleles are found primarily in heterozygotes
c. This frequency distribution will not change from generation to generation once a population is in Hardy-Weinberg equilibrium
d. The equal distribution of genotypes when p equal to q
Which of the following is correct?