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Heredity and punnet squares

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Assignment4Heredity;Name;Directions: Complete the Punnett Squares below and answer all associated questions (write legibly). Be;sure to include the proper terminology to describe the alleles and the ratios of the genotypes and;phenotypes of the characteristics indicated for each item.;1. Dominate-Recessive Inheritance;In humans, the gene for dimpled cheeks (D) is dominant over its allele for smooth cheeks (d). Complete;the Punnett square given the parental cross (DD x dd). Complete the associated Punnett square;information.;Genotypic ratio;Phenotypic ratio;How many off-springs are heterozygous?;How many off-springs are homozygous dominate?;How many off-springs are homozygous recessive?;Could they have a child who has dimpled cheeks?;Which number(s)?;2. Dominate-Recessive Inheritance;A homozygous mother with small ears (e) marries a heterozygous man with large ears (E). Complete the;Punnett square showing the off-spring possibilities. Complete the associated Punnett square information.;How many off-springs are heterozygous?;How many off-springs are homozygous dominate?;How many off-springs are homozygous recessive?;Will they have a child with small ears?;Which number(s)?;Assignment4Heredity;3. Multiple-Allele Inheritance;Three babies were born in a hospital on the same night, and their blood groups were later found to be O;B, and AB. Complete the Punnett square to cross parents AB x O (simply using the ABO system) to;determine the blood type possibilities their off-springs would have. Use the Punnett square information to;determine which baby (A, B, AB, or O) belong to them.;How many off-springs are blood type A?;How many off-springs are blood type B?;How many off-springs are blood type AB?;How many off-springs are blood type O?;Baby _________ belongs to the AB and O parents.;4. Sex-Linked Inheretance;Cross the parents (XBY x XBXb). The father is normal and the mother carries the color blind trait. The;allele for color blind is b and normal is B. Complete the Punnett square showing the possible off-springs;from this couple. Complete the associated Punnett square information.;Could they have a child who is color blind?;Which number(s)?

 

Paper#15417 | Written in 18-Jul-2015

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