In retroviruses, the pol gene product is a(n)
A) DNA polymerase.
B) reverse transcriptase.
C) integrase.
D) RNA polymerase.
E) recombinase.
B
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Which of the following is the correct order of the levels of DNA packaging in eukaryotic chromosomes?
A) nucleosome ? chromatin fiber ? looped domains ? heterochromatin B) nucleosome ? looped domains ? chromatin fiber ? heterochromatin C) heterochromatin ? nucleosome ? chromatin fiber ? looped domains D) chromatin fiber ? heterochromatin ? nucleosome ? looped domains E) chromatin fiber ? nucleosome ? looped domains ? heterochromatin
A study revealed differences in DNA methylation patterns between monozygotic twins, only one of whom was affected by a schizophrenia or bipolar disorder. This suggests a role for ____ in mental illness
Fill in the blank(s) with correct word
What processes gave rise to the reproductive isolation between Caribbean and Pacific marine organisms on either side of Central America? Discuss both biotic and abiotic processes in your answer
What will be an ideal response?
Which statement is not true about the rod cells? a. Detect dim light
b. Least abundant photoreceptor. c. Contain the pigment rhodopsin. d. Respond to changes in light intensity. e. Most abundant photoreceptor.