Meiosis_______ . a. occurs only in animals b. supports growth and tissue repair in multicelled  species c. gives rise to genetic diversity among offspring d. is part of the life cycle of all cells

Gametes are formed in Select one: a. Mitosis b. Meiosis c. None of the above mentioned

Use the following information to answer the next question. Certain disorders result if an extra chromosome is present in all cells of the body (trisomy) or if a chromosome is missing from all cells of the body (monosomy). These disorders arise because of nondisjunction, a malfunction that occurs during Select one: a. RNA transcription b. anaphase of meiosis c. RNA replication d. DNA replication O O O O

In which stage of meiosis is the chromosome number halved?   A. Prophase I   B. Telophase I   C. Metaphase I   D. Anaphase I

Human gametes ___ a. are produced by mitosis  b. have one copy of each chromosome c. have two copies of each chromosome d. are genetically identical to every other gamete made by that person  e. all of the above are true

number of chromosomes is present in ii heart cells of an organism and the sperm of an organism. The statement given above is completed by the information in row 11 _ii is present in Rowi 11 A. diploid haploid B. polyploidhaploid C. gaploid diploid D. diploid diploid

Which of the following mechanisms contributes to genetic variation through sexual reproduction via the random orientation of pairs of homologous chromosomes at metaphase of meiosis I?   A. crossing over   B. random fertilization   C. independent assortment of chromosomes   D. cytokinesis

_______ are chromosomes whose genes have no direct impact on the sex of an organism. a Gametes b Homologous chromosomes c Autosomes d Germ cells

1. A structure consisting of two homologous chromosomes bound together so tightly during the first meiotic prophase that they behave as a single unit is called a ________. 2. A mishap in chromosomal partitioning during meiosis is referred to as ________.

During meiosis both recombinant and parental type chromatids are created. Which of the outcomes below best represents a pool of gametes from a single chromosome? A || C |||||||||||| || E |||||||||||| A. A OB.C OC. E B D оос O D.D OE. B