a. Could any of their children be blood type O? Explain.
Explanation:
Let's reflect on heredity:
Females are birthed when two X chromosomes are paired up (XX).
Males are birthed when one X chromosome and one Y chromosome are paired up (XY).
If the woman has blood type AB and her husband has blood type O, their children could have any blood type associated with that. Try setting up a punnett square!
You will get:
2/4 AO
2/4 BO
So, the odds of a child getting OO are 0.
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.
Answer:
first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase.
Explanation:
Answer:
type A
Explanation:
If a person receives an O allele from one parent and an A allele from another parent then this person will have A type blood.
Blood group of a person is decided by the presence or absence of antigen A and B & their antibodies. We have ABO type of blood group system in which A and B antigens are co-dominant i.e. if both the antigens are present on the surface of red blood cells then the person will have AB blood group because both are equally dominant.
Rest of the blood groups and their allelic combinations are mentioned as under:
A blood group → AA or AO
B blood group → BB or BO
AB blood group → AB
O blood group → OO
In the given question the person has one O allele but it is receiving an A allele also. A allele is dominant on O allele so the person will have A type blood group.
O type blood group will be exhibited by a person only when it has both the alleles as 'O'.