Chapter 8 Biology

The CORRECT sequence of stages of mitosis is ________.

prophase, metaphase, anaphase, telophase

The chromosomes of eukaryotic cells are found in the ________.

nucleus

Sister chromatids are joined at the ________.

centromere

The above figure shows that ________.

meiosis results in the formation of four haploid daughter cells

A duplicated chromosome consists of two ________.

sister chromatids

Which of the following occurs during prophase?

The mitotic spindle begins to form

A karyotype (a chromosome display) would be unable to determine ________.

eye color

Which of the following is a characteristic seen in prophase I that does NOT occur in prophase II?

Crossing over occurs

The function of independent assortment is

create genetic diversity in the offspring

What is said to be independent of each other in independent assortment?

homologous chromosomes

Non-disjunction occurs

when homologous chromosomes and sister chromatids fail to separate

Which of these could lead to the mistake evident in the karyotype?

a nondisjunction in meiosis II in gamete formation

A cell that completed the cell cycle without undergoing cytokinesis would ________.

have two nuclei

Which of the following is a stage of mitosis?

telophase

During telophase, ________.

the events of prophase are reversed

Ordinary cell division produces two daughter cells that are genetically identical. This type of cell division is important for all of the following functions EXCEPT ________.

production of sperm and eggs

During metaphase, ________.

chromosomes line up in the middle of the cell

God designed parthenogenesis for some of His creatures to

preserves the creature in time of stress

Chromatin consists of ________.

DNA and protein

A(n) ________ is an example of an organism that can sometimes reproduce asexually by parthenogenesis.

Komodo dragon

Upon completion of telophase I and cytokinesis, there is(are) ________ cell(s).

two diploid

What chromosomes belong to a normal human female?

44 autosomes and 2 X chromosomes

This diagram of the human life cycle shows that ________.

meiosis produces haploid sperm and egg cells

meiosis produces haploid sperm and egg cells

homologous chromosomes

As shown in the following figure, plant cell cytokinesis differs from animal cell cytokinesis because ________.

plant cells form a cell plate and animal cells do not

Which of these describes the type of reproduction that is most adaptive in a rapidly changing environment with many different parasitic diseases present?

sexual reproduction because the diversity of genotypes increases the likelihood that there is one which can survive in a new environment

Sexual reproduction in humans ________.

allows a haploid sperm cell to fertilize a haploid egg cell

Philosophically, what is the cause of these genetic abnormalities

a consequence of sin in the world

The mitotic cell cycle results in the production of ________.

two cells, each with the same amount of genetic material and the same genetic information

Genetic variation is accomplished by all but one of the following. Choose the exception.

the events of meiosis II

Crossing over during prophase I results in ________.

genetic recombination

Which of these events occurs during anaphase?

Sister chromatids become separate chromosomes.

Centrosomes produce _________________ while spindle microtubules____________

spindle microtubules, guide the separation of the chromosomes

How much genetic material is present in a cell during prophase I compared to a cell that has completed meiosis II?

four times as much

Haploid cells have________while diploid cells have ______

a single set of the genetic material, two set of the genetic material

The karyotype above shows ________.

trisomy 21, a cause of Down syndrome

Chromosomes that do NOT determine the sex of an individual are called ________.

autosomes

One difference between mitosis and meiosis is ________.

mitosis produces cells genetically identical to the parent cell, but meiosis does not

In meiosis, how does prophase I differ from prophase II?

During prophase I there is one diploid cell; during prophase II there are two haploid cells.

Which of the following is the best description of the events of anaphase I?

Homologous chromosomes randomly separate and migrate to opposite poles.

Homologous chromosomes ________.

carry genes controlling the same inherited characteristics

Which of the following occurs during interphase?

Chromosome duplication occurs.

At the end of meiosis,

there are 4 haploid cells

At anaphase I_______ is separated while at anaphase II _______is separated

homologous chromosomes, sister chromatids

Which of the following will help prevent cancer and increase survival?

Seek early detection of tumors.

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Chapter 8 Biology

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The CORRECT sequence of stages of mitosis is ________.

prophase, metaphase, anaphase, telophase

The chromosomes of eukaryotic cells are found in the ________.

nucleus

Sister chromatids are joined at the ________.

centromere

The above figure shows that ________.

meiosis results in the formation of four haploid daughter cells

A duplicated chromosome consists of two ________.

sister chromatids

Which of the following occurs during prophase?

The mitotic spindle begins to form

A karyotype (a chromosome display) would be unable to determine ________.

eye color

Which of the following is a characteristic seen in prophase I that does NOT occur in prophase II?

Crossing over occurs

The function of independent assortment is

create genetic diversity in the offspring

What is said to be independent of each other in independent assortment?

homologous chromosomes

Non-disjunction occurs

when homologous chromosomes and sister chromatids fail to separate

Which of these could lead to the mistake evident in the karyotype?

a nondisjunction in meiosis II in gamete formation

A cell that completed the cell cycle without undergoing cytokinesis would ________.

have two nuclei

Which of the following is a stage of mitosis?

telophase

During telophase, ________.

the events of prophase are reversed

Ordinary cell division produces two daughter cells that are genetically identical. This type of cell division is important for all of the following functions EXCEPT ________.

production of sperm and eggs

During metaphase, ________.

chromosomes line up in the middle of the cell

God designed parthenogenesis for some of His creatures to

preserves the creature in time of stress

Chromatin consists of ________.

DNA and protein

A(n) ________ is an example of an organism that can sometimes reproduce asexually by parthenogenesis.

Komodo dragon

Upon completion of telophase I and cytokinesis, there is(are) ________ cell(s).

two diploid

What chromosomes belong to a normal human female?

44 autosomes and 2 X chromosomes

This diagram of the human life cycle shows that ________.

meiosis produces haploid sperm and egg cells

meiosis produces haploid sperm and egg cells

homologous chromosomes

As shown in the following figure, plant cell cytokinesis differs from animal cell cytokinesis because ________.

plant cells form a cell plate and animal cells do not

Which of these describes the type of reproduction that is most adaptive in a rapidly changing environment with many different parasitic diseases present?

sexual reproduction because the diversity of genotypes increases the likelihood that there is one which can survive in a new environment

Sexual reproduction in humans ________.

allows a haploid sperm cell to fertilize a haploid egg cell

Philosophically, what is the cause of these genetic abnormalities

a consequence of sin in the world

The mitotic cell cycle results in the production of ________.

two cells, each with the same amount of genetic material and the same genetic information

Genetic variation is accomplished by all but one of the following. Choose the exception.

the events of meiosis II

Crossing over during prophase I results in ________.

genetic recombination

Which of these events occurs during anaphase?

Sister chromatids become separate chromosomes.

Centrosomes produce _________________ while spindle microtubules____________

spindle microtubules, guide the separation of the chromosomes

How much genetic material is present in a cell during prophase I compared to a cell that has completed meiosis II?

four times as much

Haploid cells have________while diploid cells have ______

a single set of the genetic material, two set of the genetic material

The karyotype above shows ________.

trisomy 21, a cause of Down syndrome

Chromosomes that do NOT determine the sex of an individual are called ________.

autosomes

One difference between mitosis and meiosis is ________.

mitosis produces cells genetically identical to the parent cell, but meiosis does not

In meiosis, how does prophase I differ from prophase II?

During prophase I there is one diploid cell; during prophase II there are two haploid cells.

Which of the following is the best description of the events of anaphase I?

Homologous chromosomes randomly separate and migrate to opposite poles.

Homologous chromosomes ________.

carry genes controlling the same inherited characteristics

Which of the following occurs during interphase?

Chromosome duplication occurs.

At the end of meiosis,

there are 4 haploid cells

At anaphase I_______ is separated while at anaphase II _______is separated

homologous chromosomes, sister chromatids

Which of the following will help prevent cancer and increase survival?

Seek early detection of tumors.

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