When an electron in a pigment molecule is absorbed by a photon, it ____
a. is always shared with another atom via a double bond
b. is always shared with another atom via a single bond
c. emits its extra energy and returns to its original energy level
d. moves to a higher energy level and remains there
e. moves to a lower energy level and remains there
ANSWER: c
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Allele pairs are most likely to assort independently of one another when
A. they control unrelated traits. B. they control related traits. C. they are on the same chromosome. D. they are sex linked. E. they are on different chromosomes.
Which of the following occurs during metaphase?
A. Chromosomes are about 30 nm wide. B. Heterochromatin is converted to euchromatin. C. The "beads on a string" structure is visible. D. Chromosomes undergo gene transcription. E. Chromosomes are much shorter than they were in interphase.
The practice of giving a two-part scientific name to every distinct organism is called ________
Fill in the blank(s) with correct word
All eukaryotes are diploid.
Answer the following statement true (T) or false (F)