BIO Exam 4 Word Scramble
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Question | Answer |
What is the end result of meiosis and the subsequent fertilization of gametes? | An offspring with a chromosome complement unlike that of either parent |
When a sperm and egg combine, the resulting embryo has: | half of the mother's genetic information and half of the father's |
Some males have an abnormal karyotype consisting of 47 chromosomes with an extra Y chromosome. This condition is most likely caused by _____. | nondisjunction in the production of the male gamete |
Which event makes meiosis a reductional division and why? | separation of homologs in meiosis I because it produces 2 haploid (n) daughter cells from a single diploid (2n) parent cell. Separation of homologs results in a reduction in chromosome number. |
Which statement is FALSE concerning gametes produced by meiosis? | Gametes contain nonrandom combinations of maternal and paternal chromosomes. |
How could you distinguish human mitotic cells from human meiotic cells? | By counting the number of daughter cells resulting from mitotic and meiotic division |
What are the (1) haploid number, (2) ploidy, and (3) total number of chromosomes? | Haploid: Number of distinct types of chromosomes in a cell (n) Ploidy: Combination of the number of sets, and n |
The karyotype of a trisomic individual is symbolized as ____. | 2n+1 |
A species has ten distinct types of chromosomes. A haploid cell of this species contains how many chromosomes? | 10; Haploid cells only contain one copy of each chromosome. |
True, or False?: Down syndrome is caused by an extra copy of chromosome 21 | True |
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