Genetics PBL Progress Check #3

A pattern of inheritance in which a trait is carried on one of the sex-determining chromosomes.

• Mendelian Inheritance
• Co-dominance
• Incomplete dominance
• Sex-linked inheritance

A pattern of inheritance in which one allele is not completely dominant over the other.  The heterozygous phenotype is a blend of both alleles.

• Mendelian inheritance
• Co-dominance
• Incomplete dominance
• Sex-linked inheritance

A pattern of inheritance in which one allele is not completely dominant over the other.  The heterozygous phenotype clearly expresses both alleles.

• Mendelian inheritance
• Co-dominance
• Incomplete dominance
• Sex-linked inheritance

A pattern of inheritance in which one allele is completely dominant over the other allele.

• Mendelian inheritance
• Co-dominance
• Incomplete dominance
• Sex-linked inheritance

If a plant heterozygous for seed color is crossed with a plant with green seeds, what phenotypic ratio can be expected?

• 4 yellow seeds: 0 green seeds
• 3 yellow seeds: 1 green seeds
• 2 yellow seeds: 2 green seeds
• 4 yellow pods: 0 green bods

If a plant heterozygous for seed color is crossed with a plant with green seeds, what  genotypic ratio can be expected?

• 0 YY: 4 Yy: 0 yy
• 1 YY: 2 Yy: 1 yy
• 0 YY: 2 Yy: 2 yy
• 2 YY: 1 Yy: 1 yy

If a plant with the genotype SSGg is crossed with a plant with the genotype Ssgg, what percentage of the offspring will be heterozygous for both traits? 

• 75 %
• 50%
• 25%
• 12.5%

The picture to the right shows a person’s karyotype.  Which of the following can best be determined by examining this karyotype?

• The presence of an additional chromosome
• The presence of a homozygous genotype
• The person’s genome
• The person’s phenotype

 How many children of individuals I-1 and I-2 have Falconi anemia?

• 1
• 2
• 3
• 4

What is the genotype of individual III-1?

• X^fX^f
• FF
• Ff
• ff