Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
If the DNA content of a diploid cell in the G1 phase of the cell cycle is x, then the DNA content of the same cell at metaphase of meiosis II would be
A. 0.25 x D. 2x B. 0.5 x E. 4x C. x |
C
|
|
|
"Humans have 46 chromosomes." That number of chromosomes will be found in
A. cells in anaphase. B. the egg and sperm cells. C. somatic cells. D. all the cells of the body. |
C
|
|
|
Homologous chromosomes move toward opposite poles of a dividing cell during
A. mitosis. D. fertilization. B. meiosis I. E. interkinesis. C. meiosis II. |
B
|
|
|
The most important difference between sexual and asexual reproduction is that
A. two parents are needed for sexual reproduction. B. the offspring of sexual reproduction have a unique combination of genes inherited from two parents. C. sexual reproduction requires parents that are diploid. D. asexual reproduction does not involve meiosis. |
B
|
|
|
During the first meiotic division (meiosis I)
A. homologous chromosomes separate. B. the chromosome number becomes haploid. C. crossing over between nonsister chromatids occurs. D. all of the above. |
D
|
|
|
6. A cell with a diploid number of 6 could produce gametes with how many different combinations of maternal and paternal chromosomes? (Assume recombination does NOT take place in meiosis.)
A. 6 B. 8 C. 12 D. 64 |
B
|
|
|
7. In the alternation of generations found in plants,
A. the sporophyte generation produces spores by meiosis. B. the gametophyte generation produces gametes by mitosis. C. the zygote will develop into a sporophyte generation by mitosis. D. all of the above are correct. |
D
|
|
|
Meiosis II is similar to mitosis because
A. sister chromatids separate. B. homologous chromosomes separate. C. DNA replication precedes the division. D. recombination occurs in both. |
A
|
|
|
Homologous chromosomes
A. have identical genes. B. have genes for the same characters at the same loci (locations). C. pair up in prophase II. D. are found in haploid cells. |
B
|
