Y-linked traits are ____
a. known as homozygous traits
b. known to skip generations in males
c. carried only by males and transmitted only to males
d. carried only by females, but are never expressed
e. passed on to only 50% of female progeny
c
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Most fungi secure their nutrients from dead organic matter and are therefore called ________.
Fill in the blank(s) with the appropriate word(s).
Crista junctions
A) are large pores. B) are associated with the movement of materials from the cytosol into the mitochondrion. C) contain the mitochondrial DNA. D) are associated with the thylakoid membrane system. E) limit the movement of products between the intracristae and intermembrane spaces.
The nervous system develops enough to permit reflex actions during which period of development?
A. fetal, months 3-4 B. embryonic, weeks 2-3 C. embryonic, weeks 4-5 D. embryonic, weeks 6-8 E. pre-embryonic
How is natural selection related to sexual reproduction as opposed to asexual reproduction?
A) Sexual reproduction results in many new gene combinations, some of which will lead to differential reproduction. B) Sexual reproduction results in the greatest number of new mutations. C) Sexual reproduction allows the greatest number of offspring to be produced. D) Sexual reproduction utilizes far less energy than asexual reproduction.