Humans have ________ different types of autosomes.
A. 22
B. 44
C. 11
D. 23
E. 46
Answer: A
You might also like to view...
The monomers of DNA, called ________, are composed of ________
a. amino acids / carbon, hydrogen, oxygen, and nitrogen b. monosaccharides / carbon, hydrogen, and oxygen c. nucleosides / base and sugar d. nucleotides / base, sugar, and phosphate
A hydrogen bond is an attraction between a(n) ____ hydrogen atom and another hydrogen atom taking part in ____
a. covalently bonded; the same polar covalent bond b. ionically bonded; the same polar covalent bond c. covalently bonded; a separate polar covalent bond d. ionically bonded; a separate nonpolar covalent bond e. nonpolar covalently bonded; a separate nonpolar covalent bond
The first repair of mistakes during DNA replication is made by:
A: the mismatch repair system. B: excision repair. C: DNA polymerase. D: SOS repair. E: postreplication repair.
If horizontal gene transfer was predominant in early evolution, what effect does this have on building the tree of life?
a. Horizontal gene transfer places viruses firmly at the beginning of the tree of life. b. Horizontal gene transfer blurs the concept of species making it difficult to delineate ancestral species. c. Horizontal gene transfer resulted in chloroplasts that confuse the plant lineage. d. Horizontal gene transfer means that life-forms do not share a history of common descent.