Fungal spores produced asexually within a sac-like chamber at the tip of a hypha are called
A) ascospores.
B) basidiospores.
C) sporangiospores.
D) conidia.
E) zygospores.
C
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DNA replication of linear chromosomes has multiple sites known as ________.
Fill in the blank(s) with the appropriate word(s).
When cells metabolize protein, ammonia is formed. An example of an animal that directly excretes ammonia without further modification is a
a. fish. b. bird. c. snake. d. turtle. e. human.
Using hair as the derived trait, which does not
fit the clade? a. whale b. crocodile c. wolf d. elephant e. tiger
Gregor Mendel's pioneering genetic experiments with pea plants occurred before the discovery of the structure and function of chromosomes. Which of the following observations about inheritance in pea plants could be explained only after the discovery that genes may be linked on a chromosome?
(A) Pea color and pea shape display independent inheritance patterns. (B) Offspring of a given cross show all possible combinations of traits in equal proportions. (C) Most offspring of a given cross have a combination of traits that is identical to that of either one parent or the other. (D) Recessive phenotypes can skip a generation, showing up only in the parental and F2 generations.