cell cycle and molecular genetics final review

A second copy of DNA is made during...

• S phase

• M phase

• G1 phase

• Prophase

Tags

NGSS.HS-LS1-4

Two sets of chromosomes separate from one another during...

• Prophase

• Metaphase

• Anaphase

• Telophase

Tags

NGSS.HS-LS1-4

The nucleus breaks down and spindle fibers form during...

• Prophase

• Metaphase

• Anaphase

• Telophase

Tags

NGSS.HS-LS1-4

Which of the following is a goal of mitosis?

• Repairing damaged tissue

• Making sex cells

• Making energy

• Making protein

Tags

NGSS.HS-LS1-4

All body cells are...

• Haploid, which means they have two sets of chromosomes

• Diploid, which means they have two sets of chromosomes

• Haploid, which means they have one set of chromosomes

• Diploid, which means they have one set of chromosomes

Meiosis (not mitosis) produces...

• 4 cells by doing one cell division

• 4 cells by doing two cell divisions

• 2 cells by doing one cell division

• 2 cells by doing two cell divisions

A goal of meiosis (not mitosis) is...

• Producing two identical daughter cells

• Creating new genetic variation

• Growing in a disorganized or unregulated fashion

• Increasing an organism's fitness during its lifetime

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

DNA strands are said to be antiparallel, which means that...

• They pair with RNA bases

• They form C-G and A-T base pairs

• They travel in opposite 5' to 3' directions

• They contain different nucleotide "letters"

The enzyme which is necessary to "unzip" or separate DNA strands is...

• Helicase

• Ligase

• Primase

• DNA polymerase

Because DNA polymerase cannot start copying a new strand on its own, a small piece of RNA is added using an enzyme called

• Helicase

• Ligase

• Primase

• Gyrase