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DNA & Cell Cycle

Covers Unit 4: DNA & Cell Cycle

QuestionAnswer
Give one reason as to why cell division is important. For organism growth, development, maintanence or repair.
What are the three phases of interphase? G1, S, G2 (growth 1, synthesis, growth 2)
Describe the 4 steps of DNA replication. 1. helicase unzips the DNA strand. 2. primase sets starting points. 3. DNA polymerase builds DNA strands & removes RNA. 4. ligase fills holes & glues strand.
What are the four phases of mitosis? prophase, metaphase, anaphase, telophase
T or F? Cytokinesis is part of mitosis. FALSE
Which phase of the cell cycle does DNA replication occur? S phase (synthesis phase)
What is Chargaff's rule? Adenine pairs with Thymine. Cytosine pairs with Guanine.
T or F: DNA can leave the nucleus to give instructions to cells. FALSE!
What does DNA stand for? DeoxyriboNucleic Acid
What are the 3 components of a nucleotide? a phosphate group, a nitrogenous base & a deoxyribose sugar
Name the 4 nitrogenous bases. Adenine / Thymine / Guanine / Cytosine
Which nitrogenous base pairs with Thymine? Adenine
Which nitrogenous base pairs with Cytosine? Guanine
A segment of DNA that codes for a trait or protein is a... gene
What is the name of the shape of DNA? double helix
Created by: user-1982402
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