The Cell and Inheritance

Chromosomes were the key to understanding how offspring have traits similar to those of their parents.

• true

• false

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The body of a grasshopper has __ chromosomes.

Sutton discovered that grasshoppers only had __ sex cells compared to their body cells.

• 24

• 12

• 48

• 16

Tags

NGSS.HS-LS3-2

How are chromosomes paired together in cells?

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Answer explanation

In 12 pairs. One chromosome in each pair comes from the male parent, while the other chromosome pair comes from the female parent.

According to the chromosome theory of inheritance, what happens with genes?

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Answer explanation

Genes are carried from prents to their offspring on chromosomes.

Tags

NGSS.HS-LS3-1

______ is the process by which the number of chromosomes is reduced by half to form sex cells - sperm and eggs.

What happens during Meiosis?

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Answer explanation

During meiosis, chromosomes pair sperate and are distributed to two different cells.

Tags

NGSS.HS-LS3-2

What is the result of Meiosis?

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Answer explanation

The resulting sex cells have only one half as many chromosomes as the other cells in the organism. 24 = 12

Tags

NGSS.HS-LS3-2

Each sex cell has one chromosome from each original pair.

• true

• false

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The body cells of humans contain __ chromosome pairs, or 46 individual chromosomes.