I'm confused. Question about chromosomes please?

Question

I'm pretty confused here, and I was wondering if you guys could help me out.

1. I understand that in a human there are 44 autosomes (22 pairs), but how many chromosomes were contributed by the mother? and by the father?

2. A male has 2 s*x chromosomes (X and Y) however how many are contributed by the mother? and by the father?

3. Similar to above, a female has 2 s*x chromosomes (X and X), however how many are contributed by the mother? and by the father?

Thanks. I'm taking an honors biology enrichment course over the summer, and I just need some help.

Answer 1

1. 23 chromosome from mom and 23 from dad. so there are 46 chromosome in human.

2. one from mom which is usally X becuase female have both X  

so X will contribute to u and from dad it will be either X or Y. so if from dad the baby got Y than the baby will be boy because they get Y from dad and X from mom. if from dad they get X than the baby will be girl becuase from dad the baby get X and from mom too.

3. only one the female is all the time X because they have both X. remember that mom and dad they both contribute one s*x chromosome.

Answer 2

1. Both parents contribute the same amount of chromosomes, which is 22 chromosomes.

2. The mother contributes one s*x chromosome and the father contributes one s*x chromosome. The mother will always contribute a X chromosome, whereas the father who will give a X or Y chromosome.

3.Although a female is made up of 2 X chromosomes, they only supply one X. And like i said before, the father will either supply an X or Y.

And pine trees are living things and can reproduce.

Answer 3

1.  22 chromosomes are contributed by the mother and 22 are contributed by the father for a total of 44 chromosomes (22 pairs).

2.  The male is XY and gets the X-chromosome from his mother and the Y-chromosome from his father.

3.  The female is XX and gets one X-chromosome from each parent. (therefore it is the male gamete that determines the gender of the offspring)

Answer 4

1.) Half of all the chromosomes that you have were contributed by your mother and the other half by your father. (22 each)

2.) The mother always gives and X to her child but the father can give an X or a Y; which one is randomly decided.

3.) Same as above.

Yes pine trees have s*x cells. They are in the pollen they give off and in the seeds.