Which structure contains the angiosperm egg?
A. style
B. endosperm
C. anther
D. embryo sac
E. stigma
D. embryo sac
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A man and woman of normal height have a son with achondroplasia. They want to have another child and wonder what the risk is that he or she will also have this form of dwarfism. The risk is
A) 0 percent. B) the same as for any other child in the population. C) 25 percent. D) 50 percent.
What is the advantage of having introns in our
genes?
a. multiple proteins can be formed in protein synthesis b. protection from viruses c. they can be modified into new proteins d. protection from thymine dimer formation e. there is no known advantage to having introns in our genes
WHAT NAME IS GIVEN TO A SPECIFIC LOCATION OF A GENE ON A CHROMOSOME?
What will be an ideal response?
A linear depiction of energy flow in an ecosystem is:
a. a food web. b. a food chain. c. a trophic web. d. an ecological pyramid. e. a pyramid of numbers