Unit 3 Quiz

In transcription, what direction is the DNA molecule read?

• 5' to 3'

• 3' to 5'

• lagging end

• start codon

Semi-conservative replication means:

• both strands are original

• both strands are new

• both strands are the same

• 1/2 the DNA is new, 1/2 is original

What does helicase do?

• unzips DNA

• transcribes DNA

• copies and repairs DNA

If brown fur (B) in bunnies is dominant to blonde fur (b), the genotype of brown fur bunnies with respect to the fur color gene can

• can only be bb

• can only be BB

• can be Bb or BB

• can be bb or BB

If a cross is made and a trait disappears in the F₁ generation, only to reappear in the F₂, the trait is probably

• dominant

• recessive

• true breed

• blended

How many daughter cells are produced during Meiosis?

• 12

• 2

• 4

• 1

What phase is a cell in most of the time?

• Interphase

• Prophase

• Anaphase

• Metaphase

Cyclin-dependent kinases (CDKs) are enzymes that:

• facilitate DNA transcription

• are directly involved in meiosis

• are a part of cytokinesis

• regulate cell division, gene expression, and other cellular processes

Which is telophase?

• 
• 
• 
• 

What is the start codon in translation?

• GGG

• AUG

• TTT

• AGG