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BIOL133 Week 12 Exam 3- Chapters 12-15 Walden Spring 2024
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BIOL133 Week 12 Exam 3- Chapters 12-15 Walden Spring 2024
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BIOL133 Week 12 Exam 3- Chapters 12-15 Walden Spring 2024If a cross for widow's peak was conducted between a homozygous dominant and a heterozygote,
it is expected that all organisms of the offspring will have widow's peak. Even though all have
widow's peak, they can___.
A) be phenotypically different
B) have the exact same alleles
C) have more than one allele from a parent for the trait
D) be genotypically different - (answer)D) be genotypically different
If genes are completely linked, all the offspring will be ___.
A) recessive
B) recombinants
C) parental
D) dominant
E) hybrids - (answer)C) parental
Determine what statements describe Huntington's disease? Select all that apply.
A) The disease is caused by a delayed action gene
B) the disease is autosomal dominant
C) The disease is sex-linked so it is mostly seen in men
D) Offspring have a 50% change of inheriting the gene
E) it is recessive - (answer)A) the disease is caused by a delayed action gene
B) the disease is autosomal dominant
D) Offspring have a 50% chance of inheriting the gene
Sickle cell anemia is a recessive trait. A cross between two heterozygotes would produce what
phenotypic ratio?
A) 1:2:1
B) 3:1
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