Chromosomes DNA and Genes

Chromosomes can be found in

• cytoplasm.

• cell membrane.

• cell wall.

• nucleus.

Chromosomes contains

• RNA and lipids.

• DNA and lipids.

• RNA and proteins.

• DNA and proteins.

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NGSS.HS-LS3-1

A gene

(1) is a fragment of DNA on the chromosome.

(2) controls a body character.

(3) is the unit of inheritance.

• (1) and (2) only

• (1) and (3) only

• (2) and (3) only

• (1), (2) and (3)

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

A gene controls cellular reactions because all ..... are made of proteins.

• cells

• enzymes

• antibiotics

• hormones

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NGSS.HS-LS1-1

All body cells (except gametes) have

• one set of chromosomes.

• two sets of chromosomes.

• one chromosome.

• two chromosomes.

Sperms have

• one chromosome.

• two chromosomes.

• one set of chromosomes.

• two sets of chromosomes.

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NGSS.HS-LS3-2

Pairs of chromosomes with similar size and shape are called

• homozygous chromosomes.

• heterozygous chromosomes.

• homologous chromosomes.

• non-homologous chromosomes.

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NGSS.HS-LS3-2

How does all of our DNA fit into our cells

• Packaged into astrosomes

• Packaged into centromeres

• Packaged into chromosomes

• It is just floating everywhere inside of the cell

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NGSS.HS-LS3-1

How many chromosomes does each human cell have?

• 23

• 46

• 3

• 100

What is the sugar found in DNA

• Ribose

• Regular sugar

• Protein

• Deoxyribose