0
the dominant gene is not determined by mom or dad. its determined by whoever (could be either or both) has the dominant gene. not all genes over ride another gene though. codominance is possible which is where both dominant, different genes are expressed in different areas of the organism (fur color for example) in different concentrations (pink flower from red and white parent flowers is another example. what we see is the dominant red gene but since the white gene is also mixed in, our eyes see a lighter red color).
Still curious? Ask our experts.
Chat with our AI personalities
Devin
Rafa
Beau
Add your answer:
Earn +20 pts
What does dominence mean?
Dominance refers to having power and control over others or a situation. In genetics, dominance refers to a gene that will be expressed and override the effects of a recessive gene.
What is and example of a gene?
An example of a gene is the BRCA1 gene, which is known for its role in hereditary breast and ovarian cancer. This gene provides instructions for making a protein that helps repair damaged DNA and maintain the stability of the cell's genetic material. Mutations in the BRCA1 gene can increase the risk of developing certain types of cancer.
What genetic defect is more common in older mothers?
Down syndrome is more common in babies born to older mothers due to the increased risk of errors in chromosome division during egg development. This leads to an extra copy of chromosome 21, resulting in the characteristic features of Down syndrome.
Can a o positive mother and o negative father have a b negative child?
Yes, it is possible for an O positive mother and an O negative father to have a B negative child. The child would have inherited one O gene from the mother and one O gene from the father, but could have received a B gene from each parent, resulting in a B blood type. The negative Rh factor would have also been inherited from the father.
Because the gene for red-green color blindness is located on the X chromosome it is normally not possible for a?
Because the gene for red-green color blindness is located on the X chromosome, it is more common in males, who have one X chromosome and one Y chromosome. Females have two X chromosomes, so they are less likely to inherit the gene from both parents.
