1. Genes that are variants for the same trait are called A) homozygous B) allele

Question

1. Genes that are variants for the same trait are called
A) homozygous
B) alleles
C) recessive
D) phenotypic


2. Males can be carriers for hemophilia.
A) True
B) False


3. A phenotype is
A) pleiotropic
B) heterozygous
C) incomplete dominance
D) the physical manifestation of the genotype


4. To be expressed, a recessive trait must have a genotype that is
A) meiotic
B) heterozygous
C) dihybrid
D) homozygous


5. Two unaffected parents can have a child with PKU. Therefore, the gene is probably
A) phenotypic
B) recessive
C) co-dominant
D) dominant

Explanation / Answer

c a a d b

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