Dumb Bio question

[yandillo]

this is a dumb question but i'm confused now...If a chromosome consists of 2 sister chromatids joined by a centromere. How many chromatids does an egg contain? I found a similar question in Destroyer #273 and I was like ok this is easy lol and I got it wrong,......For what I know it has 23 chromosomes and 46 chromatids,,,but the answer says that it has 23 chromatids as well 😱

 

[FeralisExtremum]

The chromatids aren't duplicated in a haploid egg (or sperm). It is only during the S phase of interphase through to the end of metaphase that a chromosome exists as sister chromatids. Once anaphase begins, chromosome # = chromatid # until S phase of interphase begins again.

 

[yandillo]

Thank you Feralis,,,,your notes has ben really helpful for Bio.....Taking my test next week..I'll PM u how it goes using solely your notes and destroyer for Bio!!!

 

[biomolecmed]

Yes. The answer is correct. Egg and s
ERM cells are haploid, therefore each has only 23 chromatics.

 

[yandillo]

The chromatids aren't duplicated in a haploid egg (or sperm). It is only during the S phase of interphase through to the end of metaphase that a chromosome exists as sister chromatids. Once anaphase begins, chromosome # = chromatid # until S phase of interphase begins again.

@FeralisExtremum I got 2 questions in my Dat asking for this...I was like thanks for giving the opportunity of having 2 more questions right lol