Meiosis

Presentation

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Science

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9th - 10th Grade

•

Medium

•

NGSS

HS-LS3-2, HS-LS1-4, HS-LS3-1

Standards-aligned

Justin Morello

Used 135+ times

FREE Resource

7 Slides • 8 Questions

Meiosis

Unit 5 Concept 3 Review

Multiple Choice

MITOSIS results in ___ cells which are ___

4, unique

2, unique

2, identical

4, identical

Mitosis is for Growth and Repair

Body cells use mitosis to make exact replicas of themselves to repair your body and grow/expand

Multiple Choice

What type of cells undergo mitosis?

Somatic cells

Gametic cells

A Somatic Cell is a Body Cell

Skin, heart, brain, kidney, muscle. bone, etc.

Multiple Select

Which of the following cells are NOT somatic cells? (Select ALL that apply)

Eye cells

Sperm cells

Intestinal cells

Eggs cells

Eggs and Sperm cells are GAMETES

Gametes are haploid cells that result from meiosis

Fill in the Blanks

If a somatic (body) cell in a human has 46 chromosomes, how many does a sperm/egg cell have?

Type answer...

Haploid cells have HALF the chromosomes as somatic (diploid) cells

Haploid = half

Diploid = double

Fill in the Blanks

If a frog sperm cell has 10 chromosomes, how many are in a frog muscle cell?

Type answer...

Fill in the Blanks

If a dog brain cell has 80 chromosomes, how many are in a dog egg cell?

Type answer...

Meiosis is used to reduce the number of chromosomes

Starts with 1 diploid body cell (from testes or ovaries)
Ends with 4 haploid gametic cells (sperm or eggs)

Multiple Choice

The goal of meiosis is to increase genetic

diversity

uniformity (sameness)

Multiple Choice

The main mechanism for increasing genetic diversity in offspring is:

Photosynthesis

Mitosis

Crossing Over

Crossing over creates randomness

Homologous chromosomes exchange DNA
Makes it so every sperm/egg cell created has a unique DNA combination
No two gametes are alike (like snowflakes!)

Meiosis

Unit 5 Concept 3 Review

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