What are the three components of a DNA nucleotide?
A. A phosphate, a base, and a polypeptide
B. A sugar, a phosphate, and a peptide
C. A sugar, a base, and a polypeptide
D. A sugar, a phosphate and a base
Answer: D
You might also like to view...
If a human has the genotype XXXY, they would have:
A. 3 inactivated X chromosomes and be male. B. 2 inactivated X chromosomes and be male. C. 3 inactivated X chromosomes and be female. D. 2 inactivated X chromosomes and be female. E. 1 inactivated X chromosome and be male.
Contact of a sea urchin egg with signal molecules on sperm causes the egg to undergo a brief _____
A) mitosis B) membrane depolarization C) vitellogenesis D) acrosomal reaction
The last common ancestor shared by humans and chimpanzees lived about
A) 6,000-8,000 years ago. B) 5-7 million years ago. C) 25-40 million years ago. D) 1.5-2.5 billion years ago.
The majority of otitis media in children is mainly due to infection with
A. Streptococcus pneumoniae. B. Streptococcus pyogenes. C. Branhamella (Moraxella) catarrhalis. D. Streptococcus agalactiae. E. Staphylococcus saprophyticus.