Question: Meiosis: Similarities and differences between siblings
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gravatar for Kedar.Mhaswade
3.1 years ago by
Kedar.Mhaswade0 wrote:

The Genome News Network says here:

The same process also explains why siblings tend to be different mixtures of their parents' characteristics. For example, the chromosome 1 that you inherited from your mother might originally be the one that she, in turn, originally got from her mother, while your sister got the chromosome 1 that originally came from your mother's father. But perhaps you both inherited the same chromosome 1 from your father—the one he got from his father, say. And so on for all 23 pairs of your chromosomes—which is why you have your mother's nose and father's eyes, while your sister has your mother's eyes and your father's nose.

This confuses me because my understanding was the mutations cause these differences. How does my sister inherit a different chromosome 1 copy from our mother? Doesn't she (my sister) have the same chromosome 1 copy from my mother that I have?

genome • 677 views
ADD COMMENTlink modified 3.1 years ago by Devon Ryan89k • written 3.1 years ago by Kedar.Mhaswade0
1
gravatar for Devon Ryan
3.1 years ago by
Devon Ryan89k
Freiburg, Germany
Devon Ryan89k wrote:

No, each person has two copies of each chromosome, of which their offspring will randomly inherit one.

This also isn't a bioinformatics question, you might want to ask things like this on the biology stack exchange.

ADD COMMENTlink written 3.1 years ago by Devon Ryan89k

I see, got it. I forgot that crucial fact.

ADD REPLYlink written 3.1 years ago by Kedar.Mhaswade0
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