Genetics Review

Which of the following is heterozygous?

• MM

• Mm

• mm

Which of the following is homozygous dominant?

• RR

• Rr

• rr

Which of the following is homozygous recessive?

• QQ

• Qq

• qq

What term denotes the physical expression of a gene?

• genotype

• phenotype

• appearance

• homologous

Which of these genotypes would most likely be used to represent the dominant for pea plant height?

• TT

• tt

• PP

• pp

Which of the following would produce a recessive phenotype?

• hh

• Rr

• Ww

• BB

Which is a true statements about this picture?

• Brown is recessive
• Brown is dominant
• Blue is dominant
• Blue is codominant

Which of the following laws claims that alleles will come together independently of each other in the offspring?

• Law of Independent Assortment

• Law of Probable Expression

• Law of Typical Collection

• Law of Assorted Assignment

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

Y for yellow body is dominant over y for blue body.  What alleles would produce yellow bodies?

• YY,yy
• Yy,yy
• YY only
• YY,Yy