Karen and Steve each have a sibling with sickle cell anemia. The sickle cell allele (n) is recessive to the normal allele (N). Neither

Karen and Steve each have a sibling with sickle cell anemia. The sickle cell allele (n) is recessive to the normal allele (N). Neither Karen, Steve, nor their parents have the disease. Steve and Karen marry and have a child that has sickle-cell anemia.

Make a pedigree showing the inheritance pattern of this trait through these families. a.) Draw and label the pedigree correctly. b.) Fill in the genotypes for all the people mentioned above. c.) Identify the inheritance pattern shown.

Answers

Im pretty sure it's C

Explanation:

Hopes this helps and if it is right please mark me brainliest

The cross between plants with genotype Yyrr and yyRr and gametes that are proces by them are:

gametes that the Yyrr individual can produce - Yr or yr.

The YyRr individual can produce  - YR, Yr, yR, or yr.

The possible genotypes are shown in the punnet square.

For a pea to be yellow and wrinkled, it would have the genotype YYrr, or Yyrr (as yellow is dominant (Y) and wrinkled is recessive (r)).

Therefore, we count the number of those genotypes of the total genotypes we get are shown in punnet square..


2. What would you get if you crossed plants with the genotypes Yyrr and yyRr?

Yyrr
yyRr
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Step

Possible Genotypes are Ww and ww

Percentage of genotype Ww - 50%

Percentage of genotype ww - 50%

Possible phenotypes are Wrinkled and smooth

Percentage of Wrinkled  phenotype  - 50%

Percentage of smooth phenotype - 50%

Explanation:

Given -

Parent I  is heterozygous for the dominant trait of wrinkled seeds. Thus, its genotype would be "Ww"

Parent II is homozygous for the recessive trait of smooth seeds. Thus, its genotype would be "ww"

The punnet square representing the cross between "Ww" and "ww" is as follows -

Ww

wWwww

wWwww

Possible Genotypes are Ww and ww

Percentage of genotype Ww - 50%

Percentage of genotype ww - 50%

Possible phenotypes are Wrinkled and smooth

Percentage of Wrinkled  phenotype  - 50%

Percentage of smooth phenotype - 50%

Ww, Ww, ww, ww

 0% homozygous dominant (WW), 50% heterozygous (Ww) and 50% homozygous recessive (ww). The phenotype is 50-50, or half wrinkled seeds, half smooth seeds (2 Ww : 2 ww) 

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