WebA chromosome is made up of a single, double-stranded DNA molecule while a chromatid comprises of two DNA strands joining collectively by their centromere. When a cell divides … WebHumans have 23 chromosome pairs, which results in over eight million (2 23) possible genetically-distinct gametes just from the random alignment of chromosomes at the metaphase plate. This number does not include the variability that was previously produced by crossing over between the nonsister chromatids.

Solved A typical diploid mouse cell contains 20 pairs of - Chegg

WebThe incidence of three copies of a chromosome increases directly in proportion with the age of the mother. The incidence of three sets of chromosomes increases from age 20. The incidence of three copies of a chromosome increases the most from age 35. The incidence of three sets of chromosomes increases the most from age 30. Question 2 45 seconds Q. WebHow many chromosomes and how many chromatids are present in each of the following stages? Here is what I am guessing G1: 6 chromosomes ; 6 chromatids G2: 6 … rcw search

Meiosis review (article) Meiosis Khan Academy

WebJun 11, 2024 · When two gametes meet to create a new fruit fly, the resulting zygote will have 8 chromosomes of 4 pairs of sister chromosomes, 4 coming from each parent. Related Biology Terms Haploid – Organism … WebJun 21, 2009 · A chromosome can be made up of 1 or 2 chromotids. 1 centromere = 1 chromosome. When it's pulled apart during replication, 1 chromatid can be may still have one centromere, and still be considered one chromosome because there is still one centromere, even though its now just 1 chromotid and not 2. Upvote0Downvote J jay47 … WebThe purpose of meiosis is the production of 4 cells with half the number of chromosomes. Here at the beginning of meiosis, chromosome number is 46 (diploid). After meiosis, the resulting cells or gametes has 23 chromosomes (haploid). Hope you got the point. rcws claims