Which of the following statements about plant reproduction is incorrect?
A. Outcrossing promotes genetic diversity.
B. Dioecious plants have male and female flowers on different plants.
C. Self-pollinated plants must be visited by pollinators for fertilization to occur.
D. Self-pollinating angiosperms are usually adapted to stable habitats.
E. Monoecious plants can have male and female flowers on the same plant.
Answer: C
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What is the result of DNA ligase's action?
A. DNA is broken up at specific sites. B. DNA fragments are joined together. C. DNA translation occurs. D. DNA transcription occurs. E. DNA is condensed to chromosomes.
After cleavage, the solid ball of 16 or more cells resembling a mulberry that forms is the
A. blastocyst. B. gastrula. C. morula. D. embryonic disc. E. amnion.
Assume that a dihybrid F2 ratio, resulting from epistasis, was 9:3:4. If a double heterozygote is crossed with the fully recessive type, what phenotypic ratio is expected among the offspring?
What will be an ideal response?
Hereditary material in organisms is
a. DNA b. ATP c. RNA d. chromosomes