Biology in the Life

1. A monoploid cell is a cell
a. in which the genes be arranged haphazardly.
b. containing only one copy of each chromosome.
c. that has resulted from the bring of mitosis.
d. with twice the number of chromosomes of a diploid cell.
e. no(prenominal) of the above

2. In all sexually reproducing organisms, the diploid phase of the life wheel around begins at
a. spore formation.
b. gamete formation.
c. meiosis.
d. mitosis.
e. fertilization.

3. The members of a homologous pair of chromosomes
a. be identical in size and appearance.
b. contain identical genetic information.
c. separate to enemy poles of the cell during mitosis.
d. are found only in haploid cells.
e. are present only after the S phase.

4. bacteria typically have _______, whereas eukaryotes have _______.
a. one chromosome that is usually bank note; legion(predicate) chromosomes that are linear
b. several chromosomes that are circular; many chromosomes that are linear
c. one chromosome that is linear; many chromosomes that are circular
d. dickens chromosomes that are usually circular; eight chromosomes that are linear
e. None of the above

5. A typical eukaryotic cell cycle consists of
a. mitosis and meiosis.
b. G1, the S phase, and G2.
c. prophase, metaphase, anaphase, and telophase.
d. interphase, mitosis, and cytokinesis.
e. meiosis and fertilization.





6. How does a nucleus in G2 differ from a nucleus in G1?
a. The G2 nucleus has twice the amount of deoxyribonucleic acid as the G1 nucleus.
b. DNA synthesis occurs only in G1 phase.
c. indolent cells are arrested only in G2 phase.
d. During G2, the cell prepares for S phase.
e. all(prenominal) of the above

7. Centrosomes
a. are constricted regions of phase chromosomes.
b. are part of cilia.
c. are the central region of the cell.
d. are the region where the membrane constricts during cytokinesis.
e. contain the plane of cell division.

8. During meiosis, the sister chromatids separate during
a. anaphase I.
b. anaphase II.
c. the S phase.
d. synapsis.
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