genetics mcq

49問 • 2年前

問題一覧

Polyploidy refers to:

An individual with complete extra sets of chromosomes

What is true for the chromosomes?

The DNA sequence of the two sister chromatids are identical

In a population expressing five different alleles for a particular gene, how many alleles may be present in each diploid organism in the population?

In meiosis I anaphase:

Homologous chromosomes move toward opposite poles

During anaphase II (meiosis II)

Sisterchromatidsseparateandmigratetowardsoppositepoles

A man with type A blood marries a woman with type B blood. If both parent are homozygous, their offspring will have type _____ blood, which is an example of ___

AB; codominance

During the mitosis the spindle fibers connect to the:

kinetochores

TRUE for cell cycles

The DNA content of the cell is duplicated before mitosis.

The number of chromosomes in a zygote is

The same as in a skincell

Choose the correct statement for the M-phase

At the beginning of prophase the nuclear envelope disintegrates

A disease caused by an autosomal non-disjunction is

Down syndrome

A human genetic defect that is caused by non-disjunction of sex chromosome is

Turner syndrome

In which phase or stage do sister chromatids separate during meiosis?

In anaphase II

How many tetrads are found in meiotic prophase in an organism with a diploid number of 12?

Homologous chromosomes are NOT necessarily identical in their _______

alleles

The human genome is:

All of our DNA

Klinefelter’s syndrome (XXY) is an example of chromosomal aneuploidy that can readily be diagnosed by:

Karyotyping

A 47, XXY karyotype may be caused by the non-disjunction of __________

Meiosis II in either parent

What is true about sister chromatid exchange?

It has no genetic consequence in most of the cases

Alleles that are both expressed in a heterozygote are

Codominant

In meiosis, what is meant by a tetras of homologous chromosomes?

Four chromatids in the unit

Which of these statements about the difference between mitosis and meiosis is true?

Sister chromatids separate during mitosis and meiosis II, but not during meiosis I

Which type of chromosome abnormality is characteristic for the centric fusion?

structural aberration

Which is not true for the structural chromosome aberrations?

One or more extra copy of chromosome is in the cell

Which cytoskeletal component play a crucial role in cytokinesis?

Actin and myosin filaments

Which stage of meiosis is the physical basis for Mendels law of independent assortment?

Anaphase I

Down syndrome results from:

Thepresenceofanextrachromosomeinposition21

What is not true for the cell cycle regulation?

Theinhibitoryphosphateisremovedbyactivatingkinase

Which proteins are encoded by tumor suppressor genes?

cycline dependent kinase inhibitors

What is true about kinetochore?

It is a protein complex added to the centromere region of chromosomes

Choose the correct statement for cell cycle

M-phase is completed after the inactivation of MPF

Differences between meiosis and mitosis include all of the following EXCEPT

Each mitotic cell division and each second meiotic division is preceded bya complete round of DNA synthesis

The number of DNA molecules in the nucleus of a diploid human cell in G1 phase

A synaptonemal complex is:

Aladderlikestructurethatformsinpairingofhomologouschromosomesmeiosis

Which is correct?

MPF triggers the mitosis and meiosis as well

What characterize the inactive MPF?

It is the substrate of kinases and a phosphatases

What is the requirement for passing the restriction point?

phosphorylation of pRb

give the number of chromosomes, a cell resulting from mitosis division of spermatogonium

give the number of chromosomes, a primaryoocyte

give the number of chromosomes, secondary soermatocyte

give the number of chromosomes, the polar body formed along with a secondary oocyte

give the number of chromosomes, a soeematid

give the number of chromosomes, a cell formed after soermiogenesis

What can be the consequence in the offspring, if one of the parents is a carrier for Robertsonian translocation between chromosome 14 and 21?

The offspring will either have Down syndrome or normal phenotype.

Burkitt lymphoma

reciprocal translocation

TGT to TGC (cys to cys)

silent

TGT to TGG cys to trp

missense

TGT to TGA

nonsense

GAG to GTG disease

sickle cell anemia

Week3-4

Week3-4

Weekly2

Weekly2

Weekly2-2

Weekly2-2

Weekly2-3

Weekly2-3

Weekly3

Weekly3

Weekly3-2

Weekly3-2

Weekly3-3

Weekly3-3

Weekly3-4 Viscerosensory

n · 34問 · 2年前

Weekly3-4 Viscerosensory

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Week6-skeletal muscle

n · 10問 · 2年前

Week6-skeletal muscle

Week6- Heart

Week6- Heart

Weekly4-1

Weekly4-1

Week9

Week9

⭐️Parameters

⭐️Parameters

DNA

DNA

RNA

RNA

Week11

Week11

Week12

Week12

Week13

Week13

week1

week1

genetics quiz

genetics quiz

genetics2

genetics2

Week2

Week2

Immunology final

Immunology final

Week3

Week3

Week3-4 Thyroid

Week3-4 Thyroid

general

general

general2

general2

Week4-body

Week4-body

Week4-Caicium, bone

Week4-Caicium, bone

Week5,6-sexual

Week5,6-sexual

immunology

immunology

Internal Metabolism

Internal Metabolism

cell cycle

cell cycle

mid1?

mid1?

mid2

mid2

Week8

Week8

sensory

sensory

nerve

nerve

genetic3

genetic3

gene4

gene4

Week12

Week12

Week13

Week13

week11

week11

Midterm pp

Midterm pp

Midterm1-2

Midterm1-2

Mid2-1

Mid2-1

Minimum-mycology

Minimum-mycology

Minimum-virology

Minimum-virology

Minimum-general

Minimum-general

Minimum-systemic

Minimum-systemic

Mid2-2

Mid2-2

Mod2-3

Mod2-3

Minimum-systemic2

Minimum-systemic2

Minimum-parasitology

Minimum-parasitology

問題一覧

Polyploidy refers to:

An individual with complete extra sets of chromosomes

What is true for the chromosomes?

The DNA sequence of the two sister chromatids are identical

In a population expressing five different alleles for a particular gene, how many alleles may be present in each diploid organism in the population?

In meiosis I anaphase:

Homologous chromosomes move toward opposite poles

During anaphase II (meiosis II)

Sisterchromatidsseparateandmigratetowardsoppositepoles

A man with type A blood marries a woman with type B blood. If both parent are homozygous, their offspring will have type _____ blood, which is an example of ___

AB; codominance

During the mitosis the spindle fibers connect to the:

kinetochores

TRUE for cell cycles

The DNA content of the cell is duplicated before mitosis.

The number of chromosomes in a zygote is

The same as in a skincell

Choose the correct statement for the M-phase

At the beginning of prophase the nuclear envelope disintegrates

A disease caused by an autosomal non-disjunction is

Down syndrome

A human genetic defect that is caused by non-disjunction of sex chromosome is

Turner syndrome

In which phase or stage do sister chromatids separate during meiosis?

In anaphase II

How many tetrads are found in meiotic prophase in an organism with a diploid number of 12?

Homologous chromosomes are NOT necessarily identical in their _______

alleles

The human genome is:

All of our DNA

Klinefelter’s syndrome (XXY) is an example of chromosomal aneuploidy that can readily be diagnosed by:

Karyotyping

A 47, XXY karyotype may be caused by the non-disjunction of __________

Meiosis II in either parent

What is true about sister chromatid exchange?

It has no genetic consequence in most of the cases

Alleles that are both expressed in a heterozygote are

Codominant

In meiosis, what is meant by a tetras of homologous chromosomes?

Four chromatids in the unit

Which of these statements about the difference between mitosis and meiosis is true?

Sister chromatids separate during mitosis and meiosis II, but not during meiosis I

Which type of chromosome abnormality is characteristic for the centric fusion?

structural aberration

Which is not true for the structural chromosome aberrations?

One or more extra copy of chromosome is in the cell

Which cytoskeletal component play a crucial role in cytokinesis?

Actin and myosin filaments

Which stage of meiosis is the physical basis for Mendels law of independent assortment?

Anaphase I

Down syndrome results from:

Thepresenceofanextrachromosomeinposition21

What is not true for the cell cycle regulation?

Theinhibitoryphosphateisremovedbyactivatingkinase

Which proteins are encoded by tumor suppressor genes?

cycline dependent kinase inhibitors

What is true about kinetochore?

It is a protein complex added to the centromere region of chromosomes

Choose the correct statement for cell cycle

M-phase is completed after the inactivation of MPF

Differences between meiosis and mitosis include all of the following EXCEPT

Each mitotic cell division and each second meiotic division is preceded bya complete round of DNA synthesis

The number of DNA molecules in the nucleus of a diploid human cell in G1 phase

A synaptonemal complex is:

Aladderlikestructurethatformsinpairingofhomologouschromosomesmeiosis

Which is correct?

MPF triggers the mitosis and meiosis as well

What characterize the inactive MPF?

It is the substrate of kinases and a phosphatases

What is the requirement for passing the restriction point?

phosphorylation of pRb

give the number of chromosomes, a cell resulting from mitosis division of spermatogonium

give the number of chromosomes, a primaryoocyte

give the number of chromosomes, secondary soermatocyte

give the number of chromosomes, the polar body formed along with a secondary oocyte

give the number of chromosomes, a soeematid

give the number of chromosomes, a cell formed after soermiogenesis

What can be the consequence in the offspring, if one of the parents is a carrier for Robertsonian translocation between chromosome 14 and 21?

The offspring will either have Down syndrome or normal phenotype.

Burkitt lymphoma

reciprocal translocation

TGT to TGC (cys to cys)

silent

TGT to TGG cys to trp

missense

TGT to TGA

nonsense

GAG to GTG disease

sickle cell anemia