Which of the following is true of a human karyotype?
A. Each cell has 22 pairs of homologous chromosomes.
B. Each cell has one pair of sex chromosomes.
C. The chromosomes are numbered in order from 1 to 22.
D. All of the above are true.

Question

Which of the following is true of a human karyotype? 
	A.	Each cell has 22 pairs of homologous chromosomes.
	B.	Each cell has one pair of sex chromosomes.
	C.	The chromosomes are numbered in order from 1 to 22.
	D.	All of the above are true.

somy · Answer

hmmmm @Abhisar  im no good here

alphadxg · Answer

Karyotype is used to see if a child that hasn't been born yet to see if there are any genetic differences, so it can see all of the chromosomes.

abhisar · Answer

B is correct

alphadxg · Answer

@Abhisar .... love the explanation.

abhisar · Answer

This is typical karyotype http://prntscr.com/3sgh3t

abhisar · Answer

Have patience @alphadxg :D

anonymous · Answer

thnx everyone c:

alphadxg · Answer

@Abhisar I just explained what it was..

abhisar · Answer

Lots of appreciation for that @alphadxg !

abhisar · Answer

u got it @turtlederp034 ?

alphadxg · Answer

A is also correct.

abhisar · Answer

22 or 23 ?

alphadxg · Answer

1-22 autosomes = homologs 23 = 1 pair of sex chromosomes so A and B is correct.

abhisar · Answer

c is also correct

abhisar · Answer

X and X are not homologous ?

alphadxg · Answer

I don't think sex chromosomes are homologous if I remember.

abhisar · Answer

I dont agree

abhisar · Answer

X and Y are not homologous, but X and X are homologous

abhisar · Answer

Though i am having a doubt, in this question it can be D

alphadxg · Answer

@Abhisar In a karotype they are not homologous.

alphadxg · Answer

Answer is D, all of them are true.

abhisar · Answer

Yes u r correct