How many chromosomes are in a human somatic cell?

How many chromosomes are in a human somatic cell?
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1 Answer

Answer :

•Somatic cells (nonreproductive cells) have two sets of chromosomes
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Think carefully, now. How many DNA molecules are in each of your somatic cells?

Description : Think carefully, now. How many DNA molecules are in each of your somatic cells?

Last Answer : •In preparation for cell division, DNA is replicated and the chromosomes condense •Each duplicated chromosome has two sister chromatids, which separate during cell division, but a single DNA MOLECULE

Name two types of somatic cells in your body.

Description : Name two types of somatic cells in your body.

Last Answer : Brain and liver

How many chromosomes in a human gamete?

Description : How many chromosomes in a human gamete?

Last Answer : 23

What is a cell cycle checkpoint?

Description : What is a cell cycle checkpoint?

Last Answer : The sequential events of the cell cycle are directed by a distinct cell cycle control system, which is similar to a clock The cell cycle control system is regulated by both internal and ... The clock has specific checkpoints where the cell cycle stops until a go-ahead signal is received

What is meant by the cell cycle?

Description : What is meant by the cell cycle?

Last Answer : •The continuity of life is based on the reproduction of cells, or cell division

List two specific cancer treatments, and tell how each treatment works.

Description : List two specific cancer treatments, and tell how each treatment works.

Last Answer : Chemotherapy: Medication usually formulated chemically, and radiation where radiation is directed in certain doses via electromagnetic waves

What are growth factors?

Description : What are growth factors?

Last Answer : •Some external signals are growth factors, proteins released by certain cells that stimulate other cells to divide

What happens if all the chromosome kinetochores are not attached to spindle fibers? When this occurs, which checkpoint is not passed?

Description : What happens if all the chromosome kinetochores are not attached to spindle fibers? When this occurs, which checkpoint is not passed?

Last Answer : •If the cell does not receive the go-ahead signal, it will exit the cycle, not proceeding onto the S phase

What does MPF trigger? What are some specific activities that it triggers?

Description : What does MPF trigger? What are some specific activities that it triggers?

Last Answer : •MPF (maturation-promoting factor) is a cyclin-Cdk complex that triggers a cell’s passage past the G2 checkpoint into the M phase

The activity of cyclin-dependent kinases (CDks) rises and falls. Why?

Description : The activity of cyclin-dependent kinases (CDks) rises and falls. Why?

Last Answer : •The activity of cyclins and Cdks fluctuates during the cell cycle, molecularly, it either receives a message to go ahead or not to go ahead.

What is a protein kinase?

Description : What is a protein kinase?

Last Answer : The Cell Cycle Clock: Cyclins and Cyclin-Dependent Kinases •Two types of regulatory proteins are involved in cell cycle control: cyclins and cyclin-dependent kinases (Cdks)

What is the Go phase? Describe this phase.

Description : What is the Go phase? Describe this phase.

Last Answer : •If the cell does not receive the go-ahead signal, it will exit the cycle, switching into a nondividing state called the G0 phase

What are the components of the mitotic spindle?

Description : What are the components of the mitotic spindle?

Last Answer : •The mitotic spindle is an apparatus of microtubules that controls chromosome movement during mitosis •During prophase, assembly of spindle microtubules begins in the centrosome, the microtubule organizing center

What is a kinetochore?

Description : What is a kinetochore?

Last Answer : •During prometaphase spindle microtubules appear and are kinetochores (somewhat track like) where sister chromatids travel along them to the centriole (astor, opposite pole) region. .

In animal cells, the assembly of spindle microtubules starts at the centrosome. What is another name for the centrosome?

Description : In animal cells, the assembly of spindle microtubules starts at the centrosome. What is another name for the centrosome?

Last Answer : •During prophase, assembly of spindle microtubules begins in the centrosome, the microtubule organizing center

What are the components of the mitotic spindle? What is the source of these components?

Description : What are the components of the mitotic spindle? What is the source of these components?

Last Answer : •The mitotic spindle is an apparatus of microtubules that controls chromosome movement during mitosis

What occurs in meiosis? How is the chromosome number of daughter cells different?

Description : What occurs in meiosis? How is the chromosome number of daughter cells different?

Last Answer : •Gametes are produced by a variation of cell division called meiosis •Meiosis yields nonidentical daughter cells that have only one set of chromosomes, half as many as the parent cell

What is mitosis?

Description : What is mitosis?

Last Answer : •Eukaryotic cell division consists of Mitosis, the division of the nucleus.

Define chromatin.

Description : Define chromatin.

Last Answer : •Eukaryotic chromosomes consist of chromatin, a complex of DNA and protein that condenses during cell division

Name the two types of gametes.

Description : Name the two types of gametes.

Last Answer : •Sperm and eggs

What is a gamete?

Description : What is a gamete?

Last Answer : •Gametes (reproductive cells: sperm and eggs) have half as many chromosomes as somatic cells

What is the meaning of genome?

Description : What is the meaning of genome?

Last Answer : •All the DNA in a cell constitutes the cell’s genome Compare your genome to that of a prokaryotic cell. •A genome can consist of a single DNA molecule (common in prokaryotic cells) or a number of DNA molecules (common in eukaryotic cells)

A human somatic cell has 46 chromosomes. How many chromosomes are in a human gamete?

Description : A human somatic cell has 46 chromosomes. How many chromosomes are in a human gamete?

Last Answer : 23

The number of chromosomes present in the somatic cell of the human cell is - (1) 23 (2) 44 (3) 46 (4) 92

Description : The number of chromosomes present in the somatic cell of the human cell is - (1) 23 (2) 44 (3) 46 (4) 92

Last Answer : (3) 46 Explanation: Human cells have 23 pairs of chromosomes (22 pairs of autosomes and one pair of sex chromosomes), giving a total of 46 per cell.

The number of chromosomes present in the somatic cell of the human cell is (1) 23 (2) 44 (3) 46 (4) 92

Description : The number of chromosomes present in the somatic cell of the human cell is (1) 23 (2) 44 (3) 46 (4) 92

Last Answer : 46

Somatic cells of a human have ____ chromosomes and are called (A) 10, haploid (B) 92, diploid (C) 23, haploid (D) 46, diploid

Description : Somatic cells of a human have ____ chromosomes and are called (A) 10, haploid (B) 92, diploid (C) 23, haploid (D) 46, diploid

Last Answer : (D) 46, diploid

A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has (a) twice the number of chromosomes and four times the amount of DNA(b) four times the number of chromosomes and twice the amount of DNA (c) twice the number of chromosomes and twice the amount of DNA (d) same number of chromosomes but twice the amount of DNA

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Last Answer : (a) twice the number of chromosomes and four times the amount of DNA

2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell

Description : 2. A human cell containing 22 autosomes and a Y chromosome is probably a a) somatic cell of male b) sperm cell c) somatic cell of female d) unfertilized egg cell

Last Answer : b) sperm cell

In the human anatomy, eggs and Sperm are a form of which of the followingA.Asexual reproduction B.Sexual reproduction C.GametesD.Somatic cells?

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Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature? (1) They do not need to reproduce. (2) They are somatic cells. (3) They do not metabolise. (4) All their internal space is available for oxygen transport. (a) Only (1) (b) (1), (3) and (4) (c) (2) and (3) (d) Only (4)

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Last Answer : (d) Only (4)

Adult human RBCs are enucleated. Which of the following statement(s) is/are most appropriate explanation for this feature ? (a) They do not need to reproduce (b) They are somatic cells (c) They do not metabolize (d) All their internal space is available for oxygen transport (1) only (a) (2) (a), (c) and (d) (3) (b) and (c) (4) only (d)

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What is the difference between a somatic cell and a germ cell?

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The somatic cell hybrids are produced with the help of -Biology

Description : The somatic cell hybrids are produced with the help of -Biology

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The somatic cell hybrids are produced with the help of -Biology

Description : The somatic cell hybrids are produced with the help of -Biology

Last Answer : answer:

Assertion : Somatic embros can be induced from any cell in plant tissue culture. Reason : Any living plant cell is capable of differentiating into som

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Assertion : In plant tissue culture somatic embryos can be induced from any plant cell. Reason : Any viable plant cell can differentiate into somatic

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Assertion : In plant tissue culture somatic embryos can be induced from any plant cell. Reason : Any viable plant cell can differentiate into somatic

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A somatic cell that has just completed has just completed the S-phase of its cell cycle, as compared to gamete of the same species, has

Description : A somatic cell that has just completed has just completed the S-phase of its cell cycle, as compared to gamete of the same species, has

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In the somatic cell cycle.

Description : In the somatic cell cycle.

Last Answer : In the somatic cell cycle. A. DNA replication takes place in S-phase B. A short interphase ... double the amount of DNA present in the original cell

Crossing of plants through fusion of somatic cell

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Last Answer : Ans. Somatic hybridization

Transgenic plants are the ones (a) generated by introducing foreign DNA into a cell and regenerating a plant from that cell (b) produced after protoplast fusion in artificial medium(c) grown in artificial medium after hybridization in the field (d) produced by a somatic embryo in artificial medium.

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Which of the following statements is not true about somatic embryogenesis? (a) The pattern of development of a somatic embryo is comparable to that of a zygotic embryo. (b) Somatic embryos can develop from microspores. (c) Somatic embryo is induced usually by an auxin such as 2, 4-D. (d) A somatic embryo develops from a somatic cell.

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Last Answer : (b) Somatic embryos can develop from microspores.

Chimera refers to a. Somatic cell fusion b. Gametic cell fusion c. Undiffereciated cell d. None

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In a somatic cell cycle, DNA synthesis takes place in (a) G1 phase (b) prophase of mitosis (c) S-phase (d) G2 phase.

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In the somatic cell cycle (a) in G1 phase DNA content is double the amount of DNA present in the original cell (b) DNA replication takes place in S phase (c) a short interphase is followed by a long mitotic phase (d) G2 phase follows mitotic phase.

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Last Answer : (b) DNA replication takes place in S phase

Wucheria are found in ---------- a) lymphatics vessel and lymph nodes b) Somatic cell c) both a and b d) none

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Last Answer : a) lymphatics vessel and lymph nodes

(a) If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human: (i) Sperm (ii) Zygote (b) Name an animal in which individuals can change sex. What does this indicate? -Science

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How many chromosomes are there in each cell of human body ?

Description : How many chromosomes are there in each cell of human body ?

Last Answer : Each cell of the human body has 23 pairs or 46 chromosomes.

How many chromosomes are there in each human cell?

Last Answer : There are 46 chromosomes in each human body cell.

If a normal human cell has 46 chromosomes how many chromosomes will its daughter cell have?

Description : If a normal human cell has 46 chromosomes how many chromosomes will its daughter cell have?

Last Answer : Need answer