I have a few biology questions!
2. What statement about crossing-over is true?
a. The genetic...
Biology, 15.08.2021 06:50, rayray2083
I have a few biology questions!
2. What statement about crossing-over is true?
a. The genetic variability of the off spring is reduced.
b. It occurs during meiosis.
c. Genes located far apart on a chromosome are less likely to be separated.
d. It occurs between chromosomes that are NOT homologous.
4. The lac genes are turned off when
a. lactose is present.
b. RNA polymerase binds to the promoter.
c. the repressor binds to the operator.
d. RNA polymerase binds to the repressor.
10. Which of the following is NOT a factor that affects photosynthesis?
a. temperature
b. water availability
c. light intensity
d. heterotroph availability
12. In the Krebs cycle, pyruvic acid is
a. generated so that glycolysis can continue.
b. broken down into carbon dioxide.
c. used to convert ATP into ADP.
d. broken down into glucose.
Answers: 1
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Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds
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