DNA, Genes & Chromosomes

Front

How many total chromosomes does a human usually have?

Back

46

Front

Why are chromosomes arranged in pairs?

Back

Because you inherit one chromosome from your mother and one from your father.

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NGSS.HS-LS3-1

Front

What is the primary function of genes?

Back

Genes control the production of proteins.

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NGSS.HS-LS1-6

Front

What is a gene?

Back

A part of the chromosome that carries information and controls a trait.

Tags

NGSS.HS-LS3-1

Front

What are examples of traits influenced by genes?

Back

Eye color, hair color, having freckles, etc.

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is the structure that contains genetic information in living organisms?

Back

DNA (Deoxyribonucleic Acid).

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

Front

What are chromosomes made of?

Back

Chromatin, which is a complex of DNA and proteins.

Front

What is the difference between a gene and an allele?

Back

A gene is a segment of DNA that codes for a trait, while an allele is a variant form of a gene.

Tags

NGSS.HS-LS1-1

Front

What is the role of proteins in the body?

Back

Proteins perform a variety of functions including structural support, transport, enzymes, and signaling.

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

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NGSS.HS-LS4-4