meiosis

meiosis

By Nikkole Wowaka

Multiple Choice

Diploid Cells are represented by

• 2n
• n
• 4n
• 1/2 n

Multiple Choice

Is the following cell diploid or haploid?

• Diploid
• Haploid

Multiple Choice

What is one of the advantages, why is it better to reproduce sexually versus asexually?

• survival of the fittest
• overproduction
• genetic variation
• cloning

Multiple Choice

What is it called when a sperm and egg meet?

• meiosis
• fertilization
• cell division
• mitosis

Multiple Choice

Gametes must be haploid because-

• gametes are small and can hold only the haploid number of chromosomes

• the gametes chromosomes will be replicated prior to cell division

• two gametes will unite during fertilization to create a diploid cell

• fertilization results with a haploid zygote

Multiple Choice

The cells produced via meiosis are called:

• sex cells
• somatic cells
• body cells
• skin cells

Multiple Choice

A _______________ is any sex cell. (egg or sperm)

• zygote

• gamete

• chromosome

• gene

Multiple Choice

Which of the following could result if meiosis did not occur in the process of sexual reproduction?

• Chromosomes would no longer contain genetic information.

• Chromosome number would increase with each generation.

• Chromosomes would not be copied exactly.

• Chromosome number would decrease with each generation.

Multiple Choice

Meiosis in Male and Female cells ends with the exact same type of cells

• true

• false

Multiple Choice

Which of the following is NOT a part of mitosis?

• prophase
• anaphase
• metaphase
• interphase

Multiple Choice

Identical halves of a duplicated chromosome that are joined together at the centromere.

• diploid

• somatic cells

• homologous chromosomes

• sister chromatids

Multiple Choice

The cell spends 90% of it's life in _____.

• Mitosis
• Cytokinesis
• Interphase
• Meiosis

Multiple Choice

The correct order of the phases of mitosis and meiosis could be abbreviated as:

• MAPT
• PAMT
• TPAM
• PMAT

Multiple Choice

Why do we need meiosis?

• To double the number of chromosomes going into sex cells
• To halve the number of chromosomes going into sex cells
• To triple the number of chromosomes going into sex cells
• To not change the number of chromosomes going into sex cells

Multiple Choice

How do mitotic cells and meiotic cells look different in prophase/prophase I?

• meiotic cells would have paired homologous chromosomes

• spindle fibers would be in the mitotic cell only

• there would be twice as many chromosomes in the meiotic cell

• there would be kinetochores in the mitotic cell only

Multiple Choice

What occurs in meiosis but NOT in mitosis?

• chromosome replication
• production of daughter cells
• synapsis
• alignment of chromosomes along the metaphasal plate

Multiple Select

Homologous chromosomes are (2 answers)

• Same in size, shape, and genetic content

• Identical to each other

• One is given from the mother and one from the father

• They are unrelated to each other

Multiple Choice

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

Multiple Choice

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body or somatic cells?

• 20
• 40
• 80
• 160

Multiple Choice

The structure labeled A is a(n)

• chromatid
• centriole
• centromere
• chromophere

Multiple Choice

A picture of chromosomes in a cell. It is used to show chromosomal disorders.

• non-disjunction

• karyotype

• polar bodies

• tetrad

Multiple Choice

The chromosomes that contain genes for the organism that are not the sex chromosomes.

• autosomes

• germ cells

• homologous chromosomes

• sex chromosomes

Multiple Choice

Which statement is NOT true about Karyotypes

• Chromosomes (pairs 1-22) are arranged by size
• Sex chromosomes are found at the end
• A normal karyotype has 46 chromosomes or 23 pairs
• Having missing or extra chromosomes does not indicate a disorder

Multiple Choice

A chromosomal disorder where the affected person has three copies of chromosome 21 (trisomy 21)

• Oogenesis syndrome

• Turner's syndrome

• Kleinfelter's syndrome

• Down's syndrome

Multiple Choice

Females have ____ and males have _____ chromosomes.

• XX, XY
• XY, XX
• XX, XX
• XY, XY

Multiple Choice

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

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

• ​Another Way Meiosis Makes Lots of Different Sex Cells – Crossing-Over​

  ​

• Crossing-over multiplies the already huge number of different gamete types produced by​ Sexual Reproduction

Multiple Choice

When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, ____ occurs.

• mutagenesis
• hybridization
• crossing over
• fertilization

Multiple Choice

What is the name of the structure labeled X?

• Centriole
• Centrosome
• Chromatid
• Chromosome 

Multiple Choice

What phase is this?

• Interphase II
• Prophase I
• Metaphase I
• Anaphase II

Multiple Choice

Law of independent assortment

• each of an organism's two alleles will be separated during meiosis into different gametes

• homologous chromosomes are pulled randomly to either side and do not affect which way a different pair is pulled apart

• crossing over occurs and increases genetic variation

• two, identical, daughter cells are produced

Multiple Choice

________________ is where crossing over is complete and chromosomes move toward the center and line up.

• Prophase 1

• Metaphase 1

• Telophase 1

• Anaphase 1

Multiple Choice

In Anaphase I, the _________ are separated by the pulling of the spindle fibers to opposite poles of the cell.

• homologous pairs of chromosomes

• sister chromatids

• centromeres

• centrosomes

Multiple Choice

In meiosis 1 anaphase 1, the ______________ remain together.

• Chromatids

• Homologous Chromosomes

Multiple Choice

In anaphase 1, two _______________ of each chromosome pairs separate and are pulled by spindle fibers toward opposite poles.

• chromatids

• sister chromatids

• homologous pairs

Multiple Choice

What kind of and how many cells are produced at the end of telophase 1 during meiosis 1?

• Haploid, two

• Haploid, four

• Diploid, four

• Diploid, two

Multiple Choice

When does replication of chromosomes occur in animal cell meiosis?

• Before Meiosis I and Meiosis II
• Before Meiosis II Only
• Before Meiosis I Only
• During Prophase I and Prophase II

Multiple Choice

What begins with two daughter cells from Meiosis 1?

• Prophase II

• Metaphase II

• Anaphase II

• Telophase II

Multiple Choice

Which phase of meiosis II is when each chromosome lines up in the center of the cell?

• Prophase 2

• Metaphase 2

• Anaphase 2

• Telophase 2

Multiple Choice

Which phase of meiosis II is when homologs are pulled to opposite ends of the cell?

• Prophase 2

• Metaphase 2

• Anaphase 2

• Telophase 2

Multiple Choice

Which phase of meiosis II is when both cells divide and create 4 (haploid) cells?

• Prophase 2

• Metaphase 2

• Anaphase 2

• Telophase 2

Multiple Choice

True or False: At the end of Telophase II, the four haploid daughter cells are different from each other as well as the parent cell.

• True

• False

Multiple Choice

There are _______ cells produced in meiosis.

• 2

• 4

• 1

Multiple Choice

A cell has 16 chromosomes. After meiosis, how many chromosomes will the daughter cells have?

• 32

• 16

• 8

Multiple Choice

Human eggs and sperm are _____, and each has ____ chromosomes.

• diploid, 23
• diploid, 46
• haploid, 23
• haploid, 46

Multiple Select

What are the 3 sexual sources for genetic variation

• crossing over

• independent assortment

• mutations

• random fertilization

Multiple Choice

If the diploid number of carrots is 18, the haploid number is

• 18

• 9

• 27

• 36

Multiple Choice

How many divisions does meiosis go through?

• 2

• 1

• 4

• 23

Multiple Choice

What is separated during meiosis I?

• homologous chromosomes

• sister chromatids

• spindle fibers

• crossing over

Multiple Choice

What is separated during meiosis II?

• sister chromatids

• homologous chromosomes

• spindle fibers

• crossing over