Genetics Lab Pre Test

Identify the type specimen and its current cell state.

• Animal cell undergoing prophase

• Animal cell undergoing metaphase

• Plant cell undergoing prophase

• Plant cell undergoing metaphase

The F1 phenotypic ratio between the cross Aa and Aa is ______.

• 3:2

• 3:1

• 1:4

• 1:1

Blood ABO group has ___ genotypes.

• 3

• 4

• 5

• 6

An allele of a gene that masks the effect of the allele of another gene.

• Epistasis

• Incomplete Dominance

• Novel Phenotype

• Lethal Genes

Genes can be inherited together.

• True

• False

Nitrogenous bases present in RNA except ______.

• 
• 
• 
• 

Edwards Syndrome is a trisomy at chromosome number ______.

• 13

• 16

• 18

• 21

Patterned baldness is only observed in males.

• True

• False

Phenotypes of organisms are inherited through nuclear genes only.

• True

• False

The three nucleotides carried by tRNA is called _____.

• codon

• anticodon

• template