WebNondisjunction can occur during either meiosis I or meiosis II. If nondisjunction occurs during meiosis I, then all of the resulting gametes will have an abnormal number of chromosomes (one gamete will have an extra chromosome and the other will be missing a chromosome). If nondisjunction occurs during meiosis II, then half of the resulting ... WebNondisjunction occurs when homologous chromosomes (meiosis I) or sister chromatids (meiosis II) fail to separate during meiosis. An individual with the appropriate number of chromosomes for their species is called …

Solved 3 If nondisjunction occurs during meiosis I, as shown - Chegg

WebIn lecture we that nondisjunction can occur in meiosis 1. It can also occur in meiosis 2 a.) Draw a pair of homologous chromosomes (before DNA replication) in this cell. ( O O ( ) b.) Now draw them after replication: O O O c.) Meiosis 1 occurs normally. Draw the result: From Exam 4, question 2. In part b, how many chromosomes are there? Chromatids? WebApr 9, 2024 · Nondisjunction can occur during either meiosis I or II, with differing results (Figure 13.2. 2 ). If homologous chromosomes fail to separate during meiosis I, the result is two gametes that lack that particular chromosome and two gametes with two copies of … slow down alana springsteen lyrics

How does nondisjunction occur in meiosis 1 and 2?

WebExpert Answer If a nondisjunction occurs in meiosis 1 ,the possible gametes that can be produced are Abnormal (n+1) and Abnormal (n-1) Reason : The nondisjunction might occur in the condition that the homologous chromosomes or sister chromatid were failed to seper … View the full answer Transcribed image text: WebMay 24, 2024 · Nondisjunction can occur during meiosis I and meiosis II, resulting in abnormal chromosomes number of gametes. The key difference between nondisjunction in meiosis 1 and 2 is that during meiosis 1, homologous chromosomes fail to separate … The key difference between mitosis and meiosis is that mitosis produces two … The key difference between metaphase 1 and 2 is that in metaphase 1, … The key difference between prophase I and prophase II is that the prophase I is the … Embryo vs Zygote . Every living being starts from a zygote and goes through the … In 1996, less than 1 in 1000 children suffered from autism. In 2007 more than … WebNondisjunction can occur during anaphase of mitosis, meiosis I, or meiosis II. During anaphase, sister chromatids (or homologous chromosomes for meiosis I), will separate and move to opposite poles of the cell, pulled by microtubules. How do you know if nondisjunction occurs in meiosis 1 or 2? slow down alexa speech