The human genome is mostly composed of:
A. active retrotransposons.
B. protein-coding genes.
C. introns.
D. transposons and retrotransposons that are mostly inactive.
E. long repetitive sequences like centromeres and telomeres.
D
You might also like to view...
The rate of background extinctions is calculated to be species per year per million species.
A. 0.1 to 1.0 B. 1.0 to 10 C. 0.001 to 0.01 D. 10 to 100 E. None of the answer choices is correct.
__________ are organisms that contain two or more kinds of genetically dissimilar cells from different
zygotes. a. Heterozygotes b. Chimeras c. Recombinants d. Transgenics e. Polyploids
Red blood cells carry CO2 back to the lungs.
a. true b. false
If there are more women in the postreproductive years than in the reproductive years, and more women in the reproductive years than in the prereproductive years, what does the age structure diagram look like?
A. a pyramid B. a rectangle C. a cube D. an inverted pyramid E. an oval