If a zygote is missing one chromosome,
a. the chromosome number is expressed as 2n – 1.
b. then one chromosome is without its homologue.
c. the condition is called monosomy.
d. the chromosome number is expressed as 2n – 1,
and the condition is called monosomy.
e. the chromosome number is expressed as 2n – 1,
one chromosome is without its homologue, and
the condition is called monosomy.
Answer: e
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Osmoregulation is best defined as:
A. the control of osmotic pressure through regulation of water and solute levels. B. the movement of water from areas of lower solute concentration to areas of higher solute concentration. C. the difference in solute concentration on the two sides of a membrane. D. the movement of water through aquaporins. E. the regulation of membrane permeability.
You are shown an example of two organisms in a relationship, in which one lives on the other. The organism living on the other benefits from nutritional resources, while the organism being lived upon is harmed. This is an example of
A. predation. B. mutualism. C. commensalism. D. parasitism. E. intraspecific competition.
When the end product of a pathway inhibits catalysis of the first step of that pathway, this phenomenon is called
A. feedback inhibition. B. metabolic channeling. C. reversible covalent modification. D. non-competitive inhibition.
As geographically isolated human subpopulations became adapted to different environments over time, different phenotypes resulted, causing the evolution of various human ________
Fill in the blank(s) with correct word