Experiments with bacteria and __________ offered solid evidence that deoxyribonucleic acid (DNA),
not protein, is hereditary material. Fill in the blank(s) with the appropriate word(s).
ANS: bacteriophage PTS: 1 DIF: Easy
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If an individual has 10 gene pairs, how many different gametes can be formed if three of the gene pairs are homozygous and the remaining seven gene pairs are heterozygous?
A) 49 B) 100 C) 128 D) 1024 E) 131,072
Why is it necessary for males of some species of anglerfish to parasitize the females?
What will be an ideal response?
In a certain plant, when individuals with blue flowers
are crossed with individuals with blue flowers, only blue flowers are produced. Plants with red flowers crossed with plants with red flowers sometimes produce only red flowers, although other times they produce either red or blue flowers. When plants with red flowers are crossed with plants with blue flowers, sometimes only red flowers are produced; other times either red or blue flowers are produced. Which gene is dominant? What will be an ideal response?
Oxytocin from the mother's pituitary gland targets what organ to begin contractions?
A) oviduct B) vagina C) hypothalamus D) uterus E) fimbriae