Meiosis & Chromosomes Chpt 6.1_6.2

Last updated almost 7 years ago

99 questions

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Meiosis & Chromosomes Chpt 6.1_6.2

Last updated almost 7 years ago

99 questions

1

0

1

0

1

2

Last Name, First Name

Class Period

A  body

B  sex

These types of cells are all the cells in an organism except the reproductive gametes.

True

False

A  mitosis

B  meiosis

A repair cells in an organism

B  maintenance of the organism

C  growth and development of the organism

D  all of the answers are correct, A, B, & C

A identical

B  unique

A diploid

B  haploid

This type of asexual reproduction occurs throughout the lifetime of the organism.

True

False

A body

B  sex

These types of cells are located in the reproductive organs.

True

False

A mitosis

B  meiosis

These cells make gametes that come together to create an offspring thus passing on genes to future populations.

True

False

A identical

B  unique

A  diploid

B  haploid

Sexual reproduction occurs only at certain times in the life cycle of an organism.

True

False

This graphic represents both body and germ cells.

True

False

Half of your chromosomes come from your Dad.

True

False

And, half of our chromosomes come from your mother.

True

False

includes "autosomes" which consist of 22 homologous pairs.

True

False

sex chromosomes in mammals include an ____ chromosome

sex chromosomes include a ____ chromosome

A female

B male

A female

B  male

enter answer as a number

spell it correctly so you can receive credit for your answer

Each pair of chromosomes is called a "homologous" pair because one comes from the mother and one from the father.

True

False

The letter _____ is used to represent the female sex chromosome.

The letter ___ is used to represent the male sex chromosome.

The gene affiliated with diabetes is located on chromosome number 2.

True

False

type the chromosome number

just give the chromosome number

again, just give the chromosome nubmer

type the chromosome number

just give the chromosome number

type the chromosome number

give the chromosome number

Hemophlia is associated with a gene on the X chromosome, number 23.

True

False

A sex-linked characteristic is associated with one of the sex chromosomes (X and Y). Since the Y chromosome is very small and doesn't contain very many genes, most of the sex linked characteristics are on the X chromosome.

True

False

spell the condition correctly to receive credit

You probably wouldn't have the deleterious characteristic because the same normal gene on its chromosome pair would mask its presence.

True

False

Somatic skin cells could be damaged and cause skin cancer, or nothing may happen.

True

False

There wouldn't be any deleterious consequences for your offspring.

True

False

Downs Syndrome is the result of an extra #21 chromosome. This is one case where the offspring usually survives having an additional autosome. Most of the time an additional or missing autosome results in an aborted embryo.

True

False

A small

B large

DNA is contributed to the embryo from the sperm cell.

True

False

The sperm cell has the ability to swim/move to locate the egg for fertilization.

True

False

A small

B large

The egg also contributes DNA to the embryo.

True

False

The egg provides all other materials necessary for the embryo to grow and develop.

True

False

An appropriate picture of spermogensis has been inserted for you. It is from your textbook Fig. 6.6, page 176. You should be able to recognize this figure and draw it yourself if asked.

type only the number of cells

A figure for oogenesis has been inserted for you. It is from your textbook Chapter 6.6, page 176. You should be able to recognize this figure and draw it yourself if asked.

The end result in oogensis is 1 egg and 3 polar bodies.

True

False

Three polar bodies result from an unequal division in female oogensis.

True

False

A  X

B  Y

A diploid (2n)

B haploid (1n or n)

C

D

Gametogenesis litterly means "a gamete is born."

True

False

This is a figure of Prophase I.

True

False

Is the cell haploid or diploid?

A haploid

B diploid

This figure is Prophase II.

True

False

This cell is

A haploid

B  diploid

This is Anaphase II.

True

False

The cell is

A hapoid.

B  diploid.

This figure shows the end of Telophase I and cytokinesis in Meiosis I.

True

False

The cell is

A haploid after cytokinesis.

B  diploid after cytokinesis.

This figure shows a cell in Prophase II of Meiosis II.

True

False

These cells are

A haploid.

B diploid.

This figure shows Metaphase II of Meiosis I.

True

False

These cells are haploid.

True

False

This figure shows cells at Anaphase II of Meiosis II.

True

False

These cells are haploid.

True

False

This last figure shows the four cells created at the end of Telephase II and cytokinesis of Meiosis II.

True

False

Each of these four cells is diploid.

True

False

A chromosome

type only the number

again, type only the number

spell the phase correctly to get credit for your answer

be sure to spell the phase correctly to receive credit

read the question carefully to be sure you answer the question being asked

Asking for the numer of autosomes in a human gamete.

read carefully

Again, read carefully, asking for number of pairs in an embryo

just give the number; read carefully

enter the number; read carefully

Class Period

A  A1

B  A2

C  A4

D  A5

E  A6

F   A7

G  A8

B  sex

These types of cells are all the cells in an organism except the reproductive gametes.

True

False

B  meiosis

A repair cells in an organism

B  maintenance of the organism

C  growth and development of the organism

D  all of the answers are correct, A, B, & C

B  unique

B  haploid

This type of asexual reproduction occurs throughout the lifetime of the organism.

True

False

B  sex

These types of cells are located in the reproductive organs.

True

False

B  meiosis

These cells make gametes that come together to create an offspring thus passing on genes to future populations.

True

False

B  unique

B  haploid

Sexual reproduction occurs only at certain times in the life cycle of an organism.

True

False

This graphic represents both body and germ cells.

True

False

Half of your chromosomes come from your Dad.

True

False

And, half of our chromosomes come from your mother.

True

False

includes "autosomes" which consist of 22 homologous pairs.

True

False

B male

B  male

Each pair of chromosomes is called a "homologous" pair because one comes from the mother and one from the father.

True

False

The gene affiliated with diabetes is located on chromosome number 2.

True

False

Hemophlia is associated with a gene on the X chromosome, number 23.

True

False

A sex-linked characteristic is associated with one of the sex chromosomes (X and Y).  Since the Y chromosome is very small and doesn't contain very many genes, most of the sex linked characteristics are on the X chromosome.

True

False

You probably wouldn't have the deleterious characteristic because the same normal gene on its chromosome pair would mask its presence.

True

False

Somatic skin cells could be damaged and cause skin cancer, or nothing may happen.

True

False

There wouldn't be any deleterious consequences for your offspring.

True

False

Downs Syndrome is the result of an extra #21 chromosome. This is one case where the offspring usually survives having an additional autosome.  Most of the time an additional or missing autosome results in an aborted embryo.

True

False

B large

DNA is contributed to the embryo from the sperm cell.

True

False

The sperm cell has the ability to swim/move to locate the egg for fertilization.

True

False

B large

The egg also contributes DNA to the embryo.

True

False

The egg provides all other materials necessary for the embryo to grow and develop.

True

False

The end result in oogensis is 1 egg and 3 polar bodies.

True

False

Three polar bodies result from an unequal division in female oogensis.

True

False

B  Y

A diploid (2n)

B haploid (1n or n)

C

D

Gametogenesis litterly means "a gamete is born."

True

False

This is a figure of Prophase I.

True

False

Is the cell haploid or diploid?

A haploid

B diploid

This figure is Prophase II.

True

False

This cell is

A haploid

B  diploid

This is Anaphase II.

True

False

The cell is

A hapoid.

B  diploid.

This figure shows the end of Telophase I and cytokinesis in Meiosis I.

True

False

The cell is

A haploid after cytokinesis.

B  diploid after cytokinesis.

This figure shows a cell in Prophase II of Meiosis II.

True

False

These cells are

A haploid.

B diploid.

This figure shows Metaphase II of Meiosis I.

True

False

These cells are haploid.

True

False

This figure shows cells at Anaphase II of Meiosis II.

True

False

These cells are haploid.

True

False

This last figure shows the four cells created at the end of Telephase II and cytokinesis of Meiosis II.

True

False

Each of these four cells is diploid.

True

False

A chromosome

B  chromatid

C chromatin

D homologous

Two chromosomes that are very similar and carry the same genes are called "homologous chromosomes".

True

False

In Prophase I, the term to describe the homologus chromosomes pairing up is called "synapsis".  This allows the chromosomes to come in very close contact allowing "crossing over" which increases genetic variability.

True

False

Genetic variability continues to be increased in Metaphase I when the homologous pairs of chromosomes assort independently along the metaphase plate.

True

False

To maintain the correct chromosome number of a species, the gametes must be haploid at fertilization to maintain a viable embryo  and produce healthy offspring.

True

False

In both cases chromosomes line up randomly along the metaphase plate, however, in Metaphase I, homologous pairs line up and are pulled apart decreasing the cell from a diploid to a haploid cell; and in Metaphase II sister chromatids are pulled apart decreasing the amount of DNA in each cell.

True

False

The sister chromatids are still attached in Telophase I and in Telophase II the sister chromatids have been separated.

True

False

The number of chromosomes.  The cell changes from diploid (2n) to haploid (1n).

True

False

The amount of DNA is reduced.  Sister chromatids are separated. This doesn't reduce the number of chromosomes, just the quantity of DNA.

True

False

A Meiosis I

B  Meiosis II

C  Before Meiosis I

D  After Meiosis II

A Yes.

B  Yes. The chromosomes are still randomly assorted.

C  No.

D  No.  The maternal and paternal chromosomes would not be mixed up or arranged in a new combination, so genetic diversity would not increase.