Which of the following is not true of gene activity?
A) Once a gene becomes inactive,it remains inactive.
B) Genes may fluctuate in the amount of protein they code for at different times.
C) A gene may become active at only a certain time of the life cycle.
D) The activity of a gene may be influenced by environmental events.
Correct Answer:
Verified
Q67: Through their experiments,Fritsch and Hitzig showed that:
A)The
Q68: Females have:
A)Two X chromosomes
B)Two Y chromosomes
C)One X
Q69: The number of genes an organism has
Q70: An organism's complexity _ with the number
Q71: About _ of our DNA does not
Q73: Heritability estimates range from about _ for
Q74: Which of the following traits has the
Q75: The proposition that heritable characteristics that provide
Q76: The fertilized egg is called a:
A)Embryo
B)Zygote
C)Fetus
D)None of
Q77: Some of our non-coding DNA controls _.
A)mutation
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