BIOL 1610 Exam 3 Super Session

According to mendelian genetics, if you were to cross two heterozygotes and obtain 4 offspring, ​ (a)   would have the dominant phenotype and ​ (b)   would have the recessive phenotype. ​ (c)   would be homozygotes.

• 3
• 1
• 2
• 4
• 0

Write the math expression that you would use to find the number of different gametes possible for an organism with the genotype AaBbCCDdeeFfGGHh

Mathematical Equivalence

ON

What is the rule that allows for the possibility of all those different gametes?

• Segregation

• Independent assortment

• 9:3:3:1

• Crossing over

If a flower's gene for anther length is codominant, what phenotype would a heterozygote have?

• short anthers

• long anthers

• medium-length anthers

• a mix of long and short anthers

Match the following with their definitions

• one gene contributes to multiple traits

• epistasis

• multiple genes contribute to one trait

• polygenic

• one gene 'masks' the effect of another

• pleiotropy

The further apart two genes are on a chromosome...

• the greater the recombination frequency

• the smaller the recomination frequency

• the greater the number of recombinants

• the smaller the number of recombinants

Match the following with their function:

• Joins Okazaki fragments

• Polymerase I

• Replaces the RNA primer with DNA

• Primase

• "Unzips" the template DNA

• Ligase

• Places RNA to start a new strand

• Helicase

• Extends the new DNA strand

• Polymerase III

In the following DNA molecule, the green is the template strand and the yellow is the coding strand. Where would the promoter be found?

What would the mRNA sequence be for the following DNA template strand? Write your answer as it would appear in the 5'-3' direction.

5'-ACAGTTCATGC-3'

What is the correct order of steps for a ribosome translating an mRNA?

• tRNA enters the E site

• A hydration reaction lengthens the peptide chain

• tRNA is charged with an AA

• tRNA enters the P site

• tRNA enters the A site