Multiple Choice
Which of the following statements BEST defines a chromosome?
A) a single unit of DNA instructions for making a particular protein molecule
B) the chemical genetic code that is the basis of heredity
C) a long, threadlike structure composed of twisted parallel strands of DNA and found in the cell nucleus
D) the observable traits or characteristics displayed by an organism
Correct Answer:

Verified
Correct Answer:
Verified
Q15: A teratogen is a harmful agent or
Q16: In an experiment, it was found that
Q17: Sexual characteristics that develop during puberty and
Q18: Puberty is the stage of adolescence in
Q19: Developmental psychologists tend to conceptualize the lifespan
Q21: What general patterns have been discovered by
Q22: The activity theory of aging contends that
Q23: In the United States today, the median
Q25: In comparison to male friendships, female friendships
Q554: Humans carry all of the genes necessary