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8th Ch 2:3-DNA and Genetics

8th Ch 2:3-DNA and Genetics

Assessment

Flashcard

Science

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogen base.

2.

FLASHCARD QUESTION

Front

What are the four nitrogen bases in DNA?

Back

The four nitrogen bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

3.

FLASHCARD QUESTION

Front

What does the term 'base pairing' refer to in DNA?

Back

Base pairing refers to the specific pairing of nitrogen bases in DNA: adenine pairs with thymine, and cytosine pairs with guanine.

4.

FLASHCARD QUESTION

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

5.

FLASHCARD QUESTION

Front

Define transcription in the context of genetics.

Back

Transcription is the process of copying a segment of DNA into RNA, specifically mRNA.

6.

FLASHCARD QUESTION

Front

What is replication in DNA?

Back

Replication is the process of making an identical copy of DNA before cell division.

7.

FLASHCARD QUESTION

Front

What is a mutation?

Back

A mutation is a change in the nucleotide sequence of a gene, which can lead to changes in the protein produced.

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