Question

could a person with O+ blood have two parents with O- blood? Could that person have a daughter with AB+ blood? Please explain.

Answer 1

How does crossing over affect the alleles on a chromosome?

Answer 2

What is the difference between meiosis I and meiosis II? How are the end results different?

Answer 3

why is a diploid number always even?

Answer 4

i don't feel like explaining so i will give answer no

Answer 5

Every person has two genes that will determine their blood type. This is called a genotype. They receive one of those genes from their mother and one of those genes from their father.

Genotype.................Phenotype
AA.............................A blood
AO............................A blood
BB............................B blood
BO............................B blood
AB.............................AB blood (co dominant)
OO............................O blood

A blood and B blood will ALWAYS be dominant over O blood.

So, if both of your parents have O blood, then they HAVE to have the OO combination. Your mother will have to give you an "O" and your father will also have to give you an "O" (it's the only letter then can pass down to you). Because you are getting two "O"s you will have the OO combination, or O blood type.

Answer 6

@jrc5101520 i need answers plz don't give the answer without explanation.

Answer 7

@Preetha @Hero

Answer 8

Well, one question at a time, geesh.

Answer 9

okay the first one

Answer 10

To your second question: The reason why diploids are always even is because the diploid number contains two

Answer 11

thank you @JustAStudentLearning

Answer 12

How large are viruses compared with bacteria?

Answer 13

one question per post please.

Answer 14

http://answers.yahoo.com/question/index?qid=20081118094607AArLDR7 to the last question

Answer 15

I want to do the one question per post but I can't unless I close the question (that has not be answered yet)

Answer 16

You guys were all super helpful. Thank you!