Question

1. A Gorilla cell has a total of 24 chromosome pairs during G1 of interphase. If all chromosomes were to replicate, how many total chromatids would that one cell have at the beginning of Anaphase I?

2. A Chimpanzees cell has a total of 24 chromosome pairs during G1 of interphase. If all chromosomes were to replicate, how many total chromosomes would one cell have during Telophase II?

3. A human cell has a total of 23 chromosome pairs during G1 of interphase. How many total chromosomes would exist in one of the two cells produced during prophase II?

4. A human cell has a total of 23 chromosome pairs during G1 of interphase. How many total chromatids would exist in one of the two cells produced during early Anaphase II just before the split?

5. A human cell has a total of 23 chromosome pairs during G1 of interphase. How many total DNA strands would exist in one of the four cells produced during Telophase II?

Answer 1

Start M-1 T-11 A-1 A-T M-T Meiosis :- let us than assume D no. of chromosome in a cell is an and DNA Content in a cell is uc Now, let see miosis a so as P-1 M-1 A-1 T-1 & P-II M-II A-I T-II Chromosome an an an an an nin n n n DNA uc 8C 8C 8C 8c uc ucne uc 20 20

Interphase prophese-1 Metaphuse-1 Anuphuse-1 Telophase-/ Metaphase-II Prophase-I Angphase-I Telophuse I fig. Typical meiosis

Here, Gorilla have 24 chromosome pair Every chromose have 4 chromatid in all stage except Anaphase-II and Telophase-II (that have a chromatid per chromosome) If Normal Gorilla cell have au chrom some pair or 48 chromosome then, In A naphase- I no. of chromosome will want be ochromusume in un aphase- I chromosome have a chromatid in Anophase - I so yaxy 192 Chromutids TelDphase - I chromosome no. will get half of interphase au chromosome pair - 48 chromosome (Interphase). In Telophase I no. no. of chromosome zu chromosome ③ In Prophase I chromosome no will get half of interphuse 30, 23 so, In chromosomlpair = 46 chromosome (Interphase) prophuse - I no. of chromosome = 46 23 chromosome

Interphase have 28 pair of chromosome = 46 chromosome Since spliting is not done so each chromosome hus 4 chromatid And Anuphuse - T cell have half of chromosome then Interphose so, 23 chromosome is Anuphase-II cell I chromosome has u chromutid 23 xu = 92 chromatics so Answer is g2 chromutids! one chromosome have 2 Since DNA strand in interphase. Now, In Telophase-I cell have 23 chromosome. 80, 2382 - JUG INA strand