CH10-11 Mitosis and Meiosis Edpuzzles

What is the purpose of mitosis? Select 2 answer choices.

-to produce genetically unique cells

-to produce genetically identical cells

-to produce cells with the same number of chromosomes

-to produce cells with half the number of chromosomes

to produce genetically identical cells, to produce cells with the same number of chromosomes

How many chromosomes do human cells, like a liver cell have? Select 2 answer choices.

-46 chromosomes

-23 pairs of chromosomes

-92 chromosomes

-46 pairs of chromosomes

-23 chromosomes

46 chromosomes

23 pairs of chromosomes

What phase of the Cell Cycle contain G1, S, and G2?

-Mitosis

-M phase

-Cytokinesis

-Interphase

interphase

Which part of the Cell Cycle involves the cell making copies of their DNA? Choose the best answer.

-G2

-G0

-M phase

-G1

-S

S

Which phase of the Cell Cycle involves the cell growing, making copies of their organelles, and other normal cell activities?

Cytokinesis

-G1

-G2

-S

-Mitosis

G1

____ is the DNA when it is loosened up, while _____ is the DNA when it is tightly packed (often in the X-shape in textbooks).

-chromosome; chromatin

-chromatin; chromosome

-chromatid; chromatin

chromatin, chromosome

Which of the following DOES NOT OCCUR in Prophase (which includes prometaphase)?

-the chromatin condenses into chromosomes

-the nuclear membrane starts to break down and desintegrates

-chromosomes line up at the equator of the cell

Chromosomes line up at the equator of the cell

Which of the following describes what happens in Metaphase?

-chromosomes line up in the middle of the cell

-nuclei reforms around each set of chromosomes

-nucleus breaks down

-spindle fibers pull apart and separate the sister chromatids and move them to opposite sides of the cell

chromosomes line up in the middle of the cells

Which of the following occurs in Anaphase?

-chromosomes line up in the middle of the cell

-spindle fibers attach to the kinetochores of the chromosomes

-nuclei reforms around each copy of the chromosomes

-spindle fibers pull apart and separate the sister chromatids and move them to opposite sides of the cell

Spindle fibers pull apart and separate the sister chromatids and move them to opposite sides of the cells

During telophase of mitosis, _____ occurs. During cytokinesis, _____ occurs.

-nucleus breaks down to free the chromosomes; cell divides into two cells

-nuclei reforms around the chromosome; cell divides into two cells

-cell divides into two cells; nuclei reforms around the chromosome

nuclei reforms around the chromosome, cell divides into two cells

During cytokinesis, plant cells form a _____ and animal cells form a ______.

-cleavage furrow; cell plate

-cell plate; cleavage furrow

cell plates, cleavage furrow

What is cancer, in terms of the Cell Cycle?

-a cell just grows larger and larger until it bursts

-it is a disease

-uncontrollable cell division

-controlled cell division

uncontrollable cell division

The study of inheritance of traits.

-Heredity

-Genetics

-Somatic

Heredity

Somatic cells are:

-Diploid

-Haploid

Diploid

Which of the following are examples of gametes?

-Sperm and Ova (Eggs)

-Skin, Heart, Liver cells

Sperm and Ova(Eggs)

Homologous chromosomes are pairs of chromosomes that are:

-Identical to one another in every way. They have the same genes with exactly the same information.

-They have completely different genes

-Nearly identical to one another. They have the same genes, but different versions of those genes.

Nearly identical to one another. They have the same genes, but different versions of those genes.

Which of the following is an advantage of sexual reproduction?

-The population is very weak and genetically identical.

-The population is very strong and very genetically diverse.

-The population is strong and genetically identical.

The population is very strong and very genetically diverse

A horse has 32 pairs of homologous chromosomes. What is its haploid number?

-32

-8

-16

-64

32

A new species being studied is found to have 19 pairs of chromosomes. Is this the haploid or diploid number?

-19 is the haploid number

-19 is the diploid number

-Neither; you cannot have an organism with this many chromosomes

19 is the haploid number

What is the diploid number?

-9.5

-72

-19

-38

38

After meiosis is done, you should have gametes that have ... DNA as the parent cell. (Germ cell)

-half

-the same amount of

-none

half

When does crossing over occur?

-metaphase

-prophase

-interphase

prophase

After crossing over, you should have 4 chromatids that are:

-similar but technically unique with exchanged portions of DNA

-completely different with different genes

-identical in every way

similar but technically unique with exchanged portions of DNA

Approximately how many combinations of gametes are possible from one human being?

-8.4 million

-8.4 thousand

-8.4 trillion

8.4 million

Think back to earlier this year and Biology: When homologous chromosomes "swap" pieces of their chromosome with each other this is called?

-crossing over

-law of independent assortment

-Haploid

-law of segregation

Crossing over

How many sperm are made at the end of spermatogenesis?

-4

-2

-3

-1

4

When do males begin to make sperm?

-puberty

-in utero- before they were born

-birth

puberty

When does Oogeneisis (the process females use to make egg cells) begin for a girl?

-at birth

-in utero- before they were born

-puberty

in utero- before they were born

What do you call the cell that is discarded after the first division

-diploid cell

-live saver

-polar body

polar body

What causes the immature egg cell to complete the next split?

-the egg being released from the ovary

-the sperm coming in contact with an egg

-a girl having her period

The sperm coming in contact with an egg

What do you called a fertilized egg cell that will embed itself into the uterus?

-haploid cell

-sperm cell

-zygote

-egg cell

zygote

What is it called when your chromosomes don't separate evenly during anaphase?

-independent assortment

-crossing over

-nondisjunction

-law of segregation

nondisjunction

Which syndrome did Dr. Mike say is caused when a person has 3 copies of chromosome 21?

-Trisomy 13

-Down's syndrome

-Edwards Syndrome

Down's syndrome