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Since blood cells can't divide then how is karyotyping done?


How is the behaviour of chromosomes during cell division leading to variation? 


4. Colorblindness is an X-linked trait caused by a recessive allele. A carrier female marries a normal male. (Punnett Square: 4 points)

a. How many of the male offspring can be expected to be color-blind? (1 point)

b. How many of the male offspring can be expected to have normal vision? (1 point)

c. How many of the female offspring can be expected to be carriers? (1 point)

d. How many of the female offspring can be expected to be normal? (1 point)


4. Colorblindness is an X-linked trait caused by a recessive allele. A carrier female marries a normal male. (Punnett Square: 4 points)


A. Read and analyze the following genetic problem. Answer what is being asked. Show complete solution in a separate paper then take a picture and upload it here.(Genotypes of P, Punnett Square and GR, PR).

2. If you crossed a heterozygous spotted lizard with a homozygous green lizard, what percentage of their offspring would be green and what percentage would be spotted? Note: You may use your own letters to signify the alleles.



How does the structure of DNA account for the wide range of differences in life


1a. Discuss the role of Gene Flow in evolution

1b. Explain how Natural Selection operates to bring about evolutionary change

1c. Explain the attributes of the Biological Species that ensure that different species do not interbreed.


Can gametes be a parent cell or a parental generation?


Evaluate how the behaviour of the chromosomes leads to variation in detail


A man and a woman who are both heterozygous for blood group A decide to produce four children.


a. What are the possible phenotypes of these children?

b. What are the possible genotypes of these children?

c. What are the chances that all four children will be blood group A?

d. What are the chances that two children will be A and two children will be type O?




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