DNA Structure and Function Concepts
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is DNA?
Back
DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life, composed of two strands forming a double helix.
2.
FLASHCARD QUESTION
Front
What is the role of DNA in cell differentiation?
Back
DNA contains the instructions that determine how cells differentiate into various types, influencing gene expression.
3.
FLASHCARD QUESTION
Front
What is a mutation?
Back
A mutation is a change in the DNA sequence that can lead to variations in traits and may affect an organism's ability to survive.
4.
FLASHCARD QUESTION
Front
What is genetic variation?
Back
Genetic variation refers to the diversity in gene frequencies within a population, which is essential for evolution and adaptation.
5.
FLASHCARD QUESTION
Front
What happens during DNA replication?
Back
During DNA replication, the DNA molecule unwinds and each strand serves as a template for the creation of a new complementary strand.
6.
FLASHCARD QUESTION
Front
What is the S phase of the cell cycle?
Back
The S phase (Synthesis phase) is the part of the cell cycle where DNA is replicated, resulting in two sets of chromosomes.
7.
FLASHCARD QUESTION
Front
What is transcription in genetics?
Back
Transcription is the process of copying a segment of DNA into RNA, specifically mRNA, which carries the genetic information to the ribosome.
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