Unit 9 Study Guide

Front

What is the function of helicase in DNA replication?

Back

Helicase is the enzyme that unzips the DNA double helix to prepare for replication.

Front

What is the genotype of a woman with type B blood who has a child with type O blood?

Back

The woman's genotype must be IB i.

Front

Why are frameshift mutations (insertions and deletions) particularly harmful?

Back

They change all of the codons from the mutation on down the line, which alters the amino acid sequence.

Front

What is the correct equation for photosynthesis?

Back

6CO2 + 6H2O --> 6O2 + C6H12O6

Front

Which sequence is used to find the correct amino acid using a codon chart?

Back

mRNA

Front

What is the role of polymerase in DNA replication?

Back

Polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are glucose (C6H12O6) and oxygen (O2).

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains deoxyribose sugar, while RNA is single-stranded and contains ribose sugar.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides in mRNA that codes for a specific amino acid.

Front

What is the significance of the genetic code?

Back

The genetic code determines how sequences of nucleotides in DNA are translated into proteins.