Biology

posted by .

i asking question for my sister again

how r gene combina tions reshufled?

my sister and i find this paragraph online but we not able to get answer.

Sex can introduce new gene combinations into a population and is an important source of genetic variation.

You probably know from experience that siblings are not genetically identical to their parents or to each other (except, of course, for identical twins). That's because when organisms reproduce sexually, some genetic "shuffling" occurs, bringing together new combinations of genes. For example, you might have bushy eyebrows and a big nose since your mom had genes associated with bushy eyebrows and your dad had genes associated with a big nose. These combinations can be good, bad, or neutral. If your spouse is wild about the bushy eyebrows/big nose combination, you were lucky and hit on a winning combination!

This shuffling is important for evolution because it can introduce new combinations of genes every generation. However, it can also break up "good" combinations of genes.

  • Biology -

    Since we don't have a regular biology tutor, try posting this question in this forum.

    http://www.biology-online.org/biology-forum/

  • Biology -

    ok thanks ms. sue :)

  • Biology -

    You're welcome, Mohammad.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science, biology

    Hemophilia is a hereditary disease that prevents a persons blood from clotting correct;y. The gene responsible for blood clotting is located on the X chromosome of the sex chromosome pair (X and Y. This is called x-linked inheritance. …
  2. Biology

    Put the following procedures of gene therapy in order: a. The healthy gene is delivered to a cell in an inactivated virus. b. Researchers determine which gene is mutated and causes the disease. c. The functioning protein is used in …
  3. english

    I have to write a paragraph writing a description about my sister using figurative language. I have no idea what to do. Can you give me an example paragraph on how to start. This will help you. My sister is Sporty and is a fast runner. …
  4. Biology - evolution

    how new characteristics enter gene pool? i look for simple answer to this to help my sister. one thing i look at it say about mutation.
  5. math//algebra

    Eye color is determined by genetic combination. Let R represent the gene for brown eyes and l represent the gene for blue eyes. Any gene combination including R results in brown eyes. Consider the offspring of a parent with a homozygous …
  6. biochemical genetics

    After several rounds of experiments like those described above, you find that you have identified five different genes involved in the biosynthesis of tryptophan in this organism. You name them Gene 1 through Gene 5. Based on your …
  7. Biology Help Please!

    1) A transcriptional fusion of regulatory sequences of a particular gene with a reporter gene results in relatively uniform expression of the reporter gene in all cells of an organism, whereas a translational fusion with the same gene …
  8. algebra

    Eye color is determined by genetic combination. Let R represent the gene for brown eyes and L represent the gene for blue eyes. Any gene combination including R results in brown eyes. Consider the offspring of a parent with homozygous …
  9. Biology

    The gene for red hair is recessive to the gene for black hair.What will be the hair colour of a child if he inherits a gene for red colour from his mother and a gene of black hair from his father?
  10. algebra

    Will someone please check my answer: If R is the gene for brown eyes,and L is the gene for blue eyes, consider the children of a parent with a homozygous brown-eyed,RR,gene combination and a parent with a homozygous brown-eyed,RL,gene …

More Similar Questions