Each chromosome consists of two identical (A) Genes (B) Nuclei (C) Chromatids (D) Bases

Each chromosome consists of two identical
(A) Genes
(B) Nuclei
(C) Chromatids
(D) Bases
by

1 Answer

Answer :

(C) Chromatids
by

Related questions

At the beginning of which phase of mitosis does each duplicated and condensed chromosome consisting of two identical sister chromatids align along the cell equator?

Description : At the beginning of which phase of mitosis does each duplicated and condensed chromosome consisting of two identical sister chromatids align along the cell equator?

Last Answer : Metaphase

What is the structure that maintains identical chromatids bound ?

Description : What is the structure that maintains identical chromatids bound ?

Last Answer : The structure that maintains identical chromatids bound is the centromere. Cell Nucleus Review - Image Diversity: centromere

Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is estimated at 30,000. d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.

Description : Read the statements given below and identify the incorrect statement. a) The human genome contains 3164.7 million nucleotide bases. b) The average gene consists of 30,000 bp c) The total number of genes is ... . d) Chromosome Y has 231 genes e) Less than 2% of the genome codes for proteins.

Last Answer : d) Chromosome Y has 231 genes

The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents the virus infected cells to cytotoxic T lymphocytes d. HLA genes are found on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

Description : The following are true : a. the HLA proteins are found within the cytoplasm of the cells b. HLA class I antigens are expressed on all cells with nuclei c. HLA class II antigens presents ... on chromosome 6 e. HLA tissue typing is carried out in all forms of transplantation to prevent rejection

Last Answer : HLA class I antigens are expressed on all cells with nuclei

What are the primary and the secondary constrictions of a chromosome ?

Description : What are the primary and the secondary constrictions of a chromosome ?

Last Answer : What is the other name given to the secondary constriction? Primary constriction is the narrower region of a condensed chromosome where the centromere, the structure that unites identical chromatids, is located. ... can be one or more in chromosome) is called nucleolus organizer region (NOR).

How the chromosome region where the centromere is located is called ?

Description : How the chromosome region where the centromere is located is called ?

Last Answer : How are chromosomes classified in relation to the position of their centromere? The chromosome region where the centromere is located is called primary constriction. In microscopic view ... constriction the chromosomes are classified as telocentric, acrocentric, submetacentric or metacentric.

How are the concepts of chromosome ?

Description : How are the concepts of chromosome ?

Last Answer : chromatin and chromatids related? In which phase of the cell cycle does DNA duplicate? Chromatin is a set of filamentous DNA molecules dispersed in the karyoplasm forming euchromatin and heterochromatin ... chromosomes (and not only one). Cell Nucleus Review - Image Diversity: chromatids

What is the relation between the concepts of chromatin and chromosome ?

Description : What is the relation between the concepts of chromatin and chromosome ?

Last Answer : Are euchromatin and heterochromatin part of chromosomes? Every filament of chromatin is a complete DNA molecule (a complete double helix), i.e., a complete chromosome. A DNA molecule may form ... thus both are part of chromosomes. Cell Nucleus Review - Image Diversity: chromosome structure

What types of proteins are involved in the packaging and condensing of DNA into tightly wound nucleosome structures of a chromosome?

Description : What types of proteins are involved in the packaging and condensing of DNA into tightly wound nucleosome structures of a chromosome?

Last Answer : Histone

A chromosome whose centromere lies at one end. (A) Sum-metacentric (B) Metacentric (C) Telocentric (D) Acrocentric

Description : A chromosome whose centromere lies at one end. (A) Sum-metacentric (B) Metacentric (C) Telocentric (D) Acrocentric

Last Answer : (C) Telocentric

A chromosome with the centromere located very close to one end so that the shorter arm is very small is termed as (A) Telocentric (B) Sub-telocentric (C) Acrocentric (D) Both B and C

Description : A chromosome with the centromere located very close to one end so that the shorter arm is very small is termed as (A) Telocentric (B) Sub-telocentric (C) Acrocentric (D) Both B and C

Last Answer : (D) Both B and C

Chromosome with equal arms is called (A) Metacentric (B) Sub-metacentric (C) Acrocentric (D) Telocentric

Description : Chromosome with equal arms is called (A) Metacentric (B) Sub-metacentric (C) Acrocentric (D) Telocentric

Last Answer : (A) Metacentric

Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes ? How the human karyotype is usually represented?

Description : Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes ? How the human karyotype is usually represented?

Last Answer : Except for clones (individuals created from nucleus transplantation, like the Dolly sheep) and monozygotic twins, it is very improbable the genomes of two individuals of the same species and generated by sexual ... normal karyotype is represented by the formula 44+XX for women and 44+XY for men.

What is the name of the physical process that finally splits the parent cell into two identical daughter cells?

Description : What is the name of the physical process that finally splits the parent cell into two identical daughter cells?

Last Answer : Cytokinesis. Also more commonly known as cell division

Chromatin has two different regions, euchromatin and heterochromatin. One of these regions is highly condensed and considered an inactive region whereas the other is less condensed so it is more accessible for transcription. Which of these regions would contain genes that are being transcribed often?

Description : Chromatin has two different regions, euchromatin and heterochromatin. One of these regions is highly condensed and considered an inactive region whereas the other is less condensed so it is more ... for transcription. Which of these regions would contain genes that are being transcribed often?

Last Answer : Euchromatin. Euchromatin is less condensly packaged allowing for easier access by transcription factors and polymerases. Heterochromatin is a region of condensed packaging and considered an inactive region.

Are all genes expressed at the same time in all cell types?

Description : Are all genes expressed at the same time in all cell types?

Last Answer : No- genes are expressed at different times or in different cells types. There are several sequences in DNA that regulate when a genes is transcribed, such as- promoters and enhancer ... to start transcription and operator sequences that allow for external proteins to cause activation or repression.

The structure of DNA is a double helix formed by two strands of DNA sequence. This sequence consists of 4 different nucleotides- Adenine, Thymine, Cytosine and Guanine. How do the nucleotides on one strand interact with the nucleotides on the second strand to maintain the helical shape of DNA?

Description : The structure of DNA is a double helix formed by two strands of DNA sequence. This sequence consists of 4 different nucleotides- Adenine, Thymine, Cytosine and Guanine. How do the nucleotides on one strand interact with the nucleotides on the second strand to maintain the helical shape of DNA?

Last Answer : Complementary Base Pairing. Adenine complementary base pairs with Thymine and Guanine complementary base pairs with Cytosine.

The eukaryotic cell cycle consists of discrete phases. One of these is named the M or mitosis phase during which the cell divides. Following the M phase is a period known as interphase that is made up of three distinct phases. Name, in order, the three separate phases of interphase.

Description : The eukaryotic cell cycle consists of discrete phases. One of these is named the M or mitosis phase during which the cell divides. Following the M phase is a period known as interphase that is made up of three distinct phases. Name, in order, the three separate phases of interphase.

Last Answer : G1, S and G2

Biochemically the ribosome consists of _______________ and some 50 structural . (A) mRNA, Carbohydrates (B) tRNA, lipids (C) mRNA, Proteins (D) rRNA, Proteins

Description : Biochemically the ribosome consists of _______________ and some 50 structural . (A) mRNA, Carbohydrates (B) tRNA, lipids (C) mRNA, Proteins (D) rRNA, Proteins

Last Answer : (D) rRNA, Proteins

At what stage do each chromosome split vertically to form two chromatids ?

Description : At what stage do each chromosome split vertically to form two chromatids ?

Last Answer : Each chromosome splits vertically to form two chromatids in the prophase step.

Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe

Description : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe

Last Answer : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split ... If both Assertion & Reason are false.

$ The two strands of a chromosome are called sister chromatids ! The two sister chromatids get separated during Anaphase.

Description : $ The two strands of a chromosome are called sister chromatids ! The two sister chromatids get separated during Anaphase.

Last Answer : $ The two strands of a chromosome are called sister chromatids ! The two sister chromatids get separated during ... D. If both As and R are wrong.

After meiosis - I, the two chromatids of a chromosome are :-

Description : After meiosis - I, the two chromatids of a chromosome are :-

Last Answer : After meiosis - I, the two chromatids of a chromosome are :- A. Genetically similar B. ... chromatid in each chromosome D. None of the above

The two chromatids of a metaphase chromosome represent

Description : The two chromatids of a metaphase chromosome represent

Last Answer : The two chromatids of a metaphase chromosome represent A. replicated DNA to be separated ... and paternal chromosomes joined at the centromere

The number of chromatids in a chromosome at anaphase is

Description : The number of chromatids in a chromosome at anaphase is

Last Answer : The number of chromatids in a chromosome at anaphase is A. One in mitosis, one in meiosis-I and ... mitosis, two in meiosis-I and two in meiosis-II

Multiple alleles are present (a) at the same locus of the chromosome (b) on non-sister chromatids (c) on different chromosomes (d) at different loci on the same chromosome

Description : Multiple alleles are present (a) at the same locus of the chromosome (b) on non-sister chromatids (c) on different chromosomes (d) at different loci on the same chromosome

Last Answer : (a) at the same locus of the chromosome

Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Description : Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Last Answer : (3) number of chromosomes Explanation: An organism having more than two sets of homologous chromosomes is known as polyploid and the phenomenon polyploidy. Polyploidy refers to a numerical change in ... due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.

How Genes can be exchanged between chromatids?

Description : How Genes can be exchanged between chromatids? 

Last Answer : When two homologous chromosomes physically exchange corresponding segments during prophase I of meiosis, geneticists call it crossing over. Recombinations occur at chiasmata during pachytene of meiosis-I. If just ... to cut between genes that are far apart than genes that are closer together.  

Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Description : Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Last Answer : number of chromosomes

The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and pyrinuidine nuclei (C) Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases

Description : The structural stability of the double helix of DNA is as cribbed largely to (A) Hydrogen bonding between adjacent purine bases (B) Hydrophobic bonding between staked purine and ... Hydrogen bonding between adjacent pyrimidine bases (E) Hydrogen bonding between purine and pyrimidine bases

Last Answer : Answer : D

Tissues are constructed from many distinct cell types that perform different functions in response to signals from each other and the extracellular matrix. During tissue development and tissue regeneration, stem cells serve as a reservoir of undifferentiated cells that have the capacity to mature into different cell types. What is the name of the process that stem cells undergo when they are required to generate a particular type of cell?

Description : Tissues are constructed from many distinct cell types that perform different functions in response to signals from each other and the extracellular matrix. During tissue development and tissue regeneration, ... that stem cells undergo when they are required to generate a particular type of cell?

Last Answer : Asymmetric cell division. After asymmetric division, each of the two resulting daughter cells has a unique life course. For example, one daughter cell may differentiate into a specific cell type ( ... cell), whereas the other daughter cell may remain a stem cell with unlimited proliferative ability.

The length of each mitochondrion is about (A) 1.0 μm (B) 0.2 μm (C) 10 μm (D) 2.0 μm

Description : The length of each mitochondrion is about (A) 1.0 μm (B) 0.2 μm (C) 10 μm (D) 2.0 μm

Last Answer : (C) 10 μm

Each chloroplast encloses a system of flattened, membranous sacs called (A) Cristae (B) Thylakoids (C) Plastids (D) Cisternae

Description : Each chloroplast encloses a system of flattened, membranous sacs called (A) Cristae (B) Thylakoids (C) Plastids (D) Cisternae

Last Answer : (B) Thylakoids

Two plants can be conclusively said to belong to the same species if they (a) have more than 90 percent similar genes (b) look similar and possess identical secondary metabolites (c) have same number of chromosomes (d) can reproduce freely with each other and form seeds.

Description : Two plants can be conclusively said to belong to the same species if they (a) have more than 90 percent similar genes (b) look similar and possess identical secondary metabolites (c) have same number of chromosomes (d) can reproduce freely with each other and form seeds.

Last Answer : (d) can reproduce freely with each other and form seeds

If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced? -Do You Know?

Description : If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced? -Do You Know?

Last Answer : answer:

If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be _____. A. Radioactive B. Stable C. Isotopes D. Isobars

Description : If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be _____. A. Radioactive B. Stable C. Isotopes D. Isobars

Last Answer : ANSWER: A

If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced?

Description : If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced?

Last Answer : Stable

What is a solid with two bases that are parallel and identical polygons?

Description : What is a solid with two bases that are parallel and identical polygons?

Last Answer : It is a polygonal prism.

A bacterial colony containing DNA made up of 100% N15 nitrogen bases is allowed to replicate in a medium containing N14 bases. After one round of replication the result would be a) All individuals will be identical to parents b) All individuals will be hybrids c) Only 50% individuals would be hybrids d) All individuals would have DNA made up of 100% N14

Description : A bacterial colony containing DNA made up of 100% N15 nitrogen bases is allowed to replicate in a medium containing N14 bases. After one round of replication the result would be a) All individuals ... Only 50% individuals would be hybrids d) All individuals would have DNA made up of 100% N14

Last Answer : b) All individuals will be hybrids

What are the two main types of endocytosis ?

Description : What are the two main types of endocytosis ?

Last Answer : Endocytosis is the entrance of materia in the cell engulfed by portions of the cell membrane. Endocytosis can be classified as pinocytosis or phagocytosis. In pinocytosis small particles on ... receiving the name phagosome. Cell Membrane Review - Image Diversity: pynocitosis phagocytosis

What are the two big groups into which cells are classified ?

Description : What are the two big groups into which cells are classified ?

Last Answer : Cells can be classified as eukaryotic or prokaryotic. Prokaryotic cell is that without a delimited nucleus. Eukaryotic cells are those with nucleus delimited by membrane. Cell Structure Review - Image Diversity: eukaryotic cell prokaryotic cell

In many types of cancer, proteins that are crucial regulators of the cell cycle are often mutated and cannot function correctly. This leads to the evasion of apoptosis and to the loss of control of cell proliferation? For example, many cancer cells carry two mutant copies of the gene that codes for a tumor suppressor protein named p53. What is the normal function of p53 that is lost when it is mutated?

Description : In many types of cancer, proteins that are crucial regulators of the cell cycle are often mutated and cannot function correctly. This leads to the evasion of apoptosis and to the loss of control of cell ... protein named p53. What is the normal function of p53 that is lost when it is mutated?

Last Answer : Normally, p53 senses DNA damage and acts as a transcription factor for checkpoint control genes.

During mitosis, the eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. Mitosis progresses through five separate morphologically distinct phases. Name, in order, these five phases of mitosis.

Description : During mitosis, the eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. Mitosis progresses through five separate morphologically distinct phases. Name, in order, these five phases of mitosis.

Last Answer : Prophase, prometaphase, metaphase, anaphase, and telophase.

Name two unique features of mitochondria.

Description : Name two unique features of mitochondria.

Last Answer : Surrounded by two membranes (an inner and an outer membrane); have their own genome

Instead of using energy from oxidative reactions immediately, cells store some of this energy for later use. Name two of these small, energy-rich molecules used to store energy.

Description : Instead of using energy from oxidative reactions immediately, cells store some of this energy for later use. Name two of these small, energy-rich molecules used to store energy.

Last Answer : ATP and NADH

What are the two faces of the Golgi body? (A) Funny face and goofy face (B) Coated face and non-coated face (C) Saving face and loosing face (D) Cis face and Trans face

Description : What are the two faces of the Golgi body? (A) Funny face and goofy face (B) Coated face and non-coated face (C) Saving face and loosing face (D) Cis face and Trans face

Last Answer : (D) Cis face and Trans face

What is the difference between the concepts of karyotype and genome ?

Description : What is the difference between the concepts of karyotype and genome ?

Last Answer : Genome is the set of DNA molecules that characterizes each living being or each species. The concept then includes the specific nucleotide sequence of the DNA molecules of each individual or species. ... of each chromosome or pair of homologous. Cell Nucleus Review - Image Diversity: karyotype

What are homologous chromosomes ?

Description : What are homologous chromosomes ?

Last Answer : Which are the human cells that do not have homologous chromosomes? Chromosomes contain genes (genetic information in the form of nucleotide sequences) that command the protein synthesis thus ... chromosomes are the gametes since during meiosis the homologous chromosomes are separated.

In the phase when the cell is not dividing ?

Description : In the phase when the cell is not dividing ?

Last Answer : interphase) is there activity within the cell nucleus? In the interphase there is intense metabolic activity in the cell nucleus: DNA is duplicating, euchromatin is being transcript and RNA is produced.

What are heterochromatin and euchromatin ?

Description : What are heterochromatin and euchromatin ?

Last Answer : Chromatin is uncondensed nuclear DNA, the typical DNA morphology in interphase (the phase of the cell cycle in which the cells is not dividing itself). In this phase of the cell cycle ... inactive portions of the DNA molecule. Cell Nucleus Review - Image Diversity: heterochromatin euchromatin