Nondisjunction

Presentation

•

Biology

•

9th - 12th Grade

•

Medium

•

NGSS

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

Standards-aligned

HEATHER TILTON

Used 7+ times

FREE Resource

14 Slides • 17 Questions

Nondisjunction

by HEATHER TILTON

Multiple Choice

A sperm contains

Both an X and a Y chromosome

Two X chromosomes

An X OR a Y chromosome

only a Y chromosome

Multiple Choice

An egg contains

22 autosomes and an X chromosome

22 autosomes and an Y chromosome

44 autosomes and 2 X chromosomes

44 autosomes and an X and a Y chromosome

Multiple Choice

Down's syndrome occurs because of a(n)

missing sex chromosome

extra sex chromosome

additional 21st chromosome

additional 18th chromosome

Multiple Choice

What would you call the failure of one or more pairs of homologous chromosomes or sister chromatids to separate normally during meiosis?

nondisjunction

anaphase I

nondiploidy

karyotype

Multiple Choice

Nondisjunction can result in

trisomy conditions

monosomy conditions

additional sex chromosomes

all of these

Multiple Choice

What is the primary cause of genetic variation during meiosis?

chromosomes lining up

"crossing over" of chromosomes

separation of chromosomes

chromosomes pulling apart

Multiple Choice

The process of "crossing over" occurs in what phase of meiosis?

anaphase 1

prophase 1

prophase 2

telophase 2

Multiple Choice

Which of the following would be considered a Gamete cell?

Egg Cell

Sperm Cell

Both of these

None of these

Multiple Choice

The chromosomes that pair up during the first division of meiosis are called __________ chromosomes.

homozygous

asexual

homologous

genes

Multiple Choice

What is it called when a sperm and egg meet?

meiosis

fertilization

cell division

mitosis

Multiple Choice

Which process and type of resulting cells are represented?

mitosis, gametes

mitosis, body cells

meiosis, gametes

meiosis, body cells

Multiple Choice

What kind of cells are made in MEIOSIS?

Haploid Gametes

Diploid Somatic Cells

Skin Cells

Liver Cells

Multiple Choice

If the Diploid number of Carrots is 18, the haploid number is

Multiple Choice

What causes genetic variation in meiosis?

chromosomes lining up

crossing over of homologous chromosomes

separation of chromosomes

chromosomes pulling apart

Multiple Choice

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

23, 46

46, 23

2, 4

50, 100

Multiple Choice

A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called

sister chromotids

centromeres

homologous chromosomes

autosomes

Multiple Choice

products of meiosis are genetically

different

identical

Nondisjunction

by HEATHER TILTON

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