Draw the punnet square and explain the results
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XH = normal blood
%3D
Xh =hemophilia
a
A normal woman whose father has hemophilia has
children with a man with hemophilia. Hemophilia is a
recessive X-linked trait. What is the expected
PE
phenotypic ratio of their children?
A) 2 normal females: 1 normal male: 1 hemophiliac male
B) 1 normal female : 1 normal male
C) 1 normal female: 1 hemophiliac female: 1 normal
male: 1 hemophiliac male
D) 1 normal female: 1 hemophiliac female: 2 hemophiliac
males
E) 2 hemophiliac females: 1 normal male: 1 hemophiliac
30
male
即 豆
O I O E :
6:03 PM
2/19/2021
SLIDE 30 OF 08](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Faecfbbf9-42df-414d-8f9c-8126698fab0b%2Fd9ca0071-d976-437c-917e-91ec417e1094%2F14laiwi_processed.jpeg&w=3840&q=75)
Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden pea plants. Mendel presented his work in a paper entitled “Experiments in plant hybridization” at the meeting of the natural history society of Brunn. Mendel gave various postulates regarding the inheritance of characters and these postulates later became the law of Mendel. The three laws given by Mendel are the law of dominance, the law of segregation, and the law of independent assortment.
Human inheritance can be studied by pedigree analysis. Pedigree is a diagram like a family tree. There are 5 types of human inheritance- X-linked recessive, X-linked dominant, Y-linked, autosomal dominant, and autosomal recessive.
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