What process makes it possible for two siblings to have the same mom and dad still look different?
Table of Contents
- 1 What process makes it possible for two siblings to have the same mom and dad still look different?
- 2 How can the same two parents produce children that are all different?
- 3 Why do we find variations in the offspring of parents although they have taken birth from the same parents?
- 4 How can twins or even members of the same family be so different?
- 5 Why do we find variation in the offspring?
- 6 How do offspring differ from their parents?
What process makes it possible for two siblings to have the same mom and dad still look different?
After all, kids get their genes from the same parents. But brothers and sisters don’t look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.
How can the same two parents produce children that are all different?
The answer has to do with the fact that each parent actually has two different sets of genes. And that each parent passes only half of their genes to their child. And that the half that gets passed down is random. All of this together ensures that each child ends up with a different, unique set of genes.
Can you have two children at the same time?
A multiple birth is the culmination of one multiple pregnancy, wherein the mother gives birth to two or more babies. A term most applicable to vertebrate species, multiple births occur in most kinds of mammals, with varying frequencies.
Why do we find variations in the offspring of parents although they have taken birth from the same parents?
This is because the two parents share one or more common ancestors and so carry some of the same genetic material.
How can twins or even members of the same family be so different?
Even twins can get noticeably different results from genetic ancestry tests, due to a biological process called genetic recombination.
Can siblings be 9 months apart?
It’s technically possible for two siblings to be as close as 9 or 10 months apart. After your pregnancy comes to an end, you’ll start ovulating again before you have your first postpartum period.
Why do we find variation in the offspring?
Most organisms that reproduce sexually have two copies of each gene, because each parent cell or organism donates a single copy of its genes to its offspring. Genetic variation in a group of organisms enables some organisms to survive better than others in the environment in which they live.
How do offspring differ from their parents?
In asexual reproduction all the genes in the offspring come from one parent. In sexual reproduction one full set of the genes come from each parent. Living things produce offspring of the same species, but in many cases offspring are not identical with each other or with their parents.