2.4 DNA Test Review
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a point mutation?
Back
A point mutation is a change in a single nucleotide in the DNA sequence, which can affect the codon and potentially alter the amino acid produced.
2.
FLASHCARD QUESTION
Front
How does a point mutation affect offspring?
Back
A point mutation can cause a genotypic change in the organism, but it may not necessarily cause a phenotypic change in the organism or its offspring.
3.
FLASHCARD QUESTION
Front
What is DNA replication?
Back
DNA replication is the process by which a cell makes an exact copy of its DNA, ensuring that genetic information is passed on during cell division.
4.
FLASHCARD QUESTION
Front
How can mutations be carried into future DNA strands?
Back
During DNA replication, the old strands serve as templates, allowing any existing mutations to be copied into the new strands.
5.
FLASHCARD QUESTION
Front
What is a base substitution mutation?
Back
A base substitution mutation is a type of mutation where one nucleotide is replaced by another, potentially altering the resulting protein.
6.
FLASHCARD QUESTION
Front
What is the effect of a base substitution mutation on genetic information?
Back
A base substitution mutation can lead to a change in genetic information because the complementary strand is used as a template during replication.
7.
FLASHCARD QUESTION
Front
What are the steps of DNA replication?
Back
1. DNA unwinds in the nucleus. 2. Complementary base pairs are added. 3. DNA rewinds back together. 4. Two identical DNA molecules are formed.
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