Retest_Summative 2

1. What do we call the diagram used to predict the genetic outcomes of a cross?
          

• Pedigree chart

• Crossword

• Punnett square

• Family tree

A cross between two traits like seed color and seed shape is called a:
                         

• A. Genotypic cross

• B. Monohybrid cross

• C. Pedigree cross

• D. Dihybrid cross

What are the different forms or version of a gene called?
                         

• A. Chromosomes

• B. Traits

• C. Alleles

• D. Gametes

Which genotype represents a heterozygous dominant individual?
                      

•    A. BB

• B. aa

• C. Bb

• D. pp

Which genotype represents a homozygous dominant individual?
                         

• A. Bb

• B. aa

• C. BB

• D. Cc

What conclusion can be made if a Tt × Tt cross produces 3 tall and 1 short offspring?
               
               
             
               

• A. Short is a dominant trait

• B. Tall is a dominant trait

•    C. All offspring are tall

• D. Tall is recessive

If a plant has the genotype Aa, how can we describe its alleles?
               
               
               
               

• A. Both are dominant

• B. One is dominant, one is recessive

• C. Both are the same

• D. Both are recessive

What is the genotype of a heterozygous individual?
                       

• A. AA

• B. Aa 

• C. aa

•  D. A

What term refers to the genetic makeup of an organism?
                        

• A. Trait

• B. Phenotype 

• C. Allele

• D. Genotype

What is the expected genotypic ratio in a monohybrid cross between Rr × Rr?
                         

• A. 1:2:1

• B. 3:1

• C. 9:3:3:1

• D. 1:1