Genes, the hereditary units, are located in the – (1) nuclear membrane (2) chromosomes (3) lysosomes (4) cell membrane

Genes, the hereditary units, are located in the – (1) nuclear membrane (2) chromosomes (3) lysosomes (4) cell membrane
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(2) chromosomes Explanation: A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomal DNA encodes most or all of an organism's genetic information; some species also contain plasrnids or other extrachromosomal genetic elements.
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Genes, the hereditary units, are located in the (1) nuclear membrane (2) chromosomes (3) lysosomes (4) cell membrane

Description : Genes, the hereditary units, are located in the (1) nuclear membrane (2) chromosomes (3) lysosomes (4) cell membrane

Last Answer : chromosomes

Eukaryotic cells have extensive intracellular membranes, termed the endomembrane system, which divide the cell into structurally and functionally distinct compartments, or organelles. These include the inner cell membrane, nuclear envelope, endoplasmic reticulum, the Golgi apparatus, and lysosomes. Name a cellular component whose membrane is not part of the endomembrane system.

Description : Eukaryotic cells have extensive intracellular membranes, termed the endomembrane system, which divide the cell into structurally and functionally distinct compartments, or organelles. These include the inner cell ... . Name a cellular component whose membrane is not part of the endomembrane system.

Last Answer : Mitochondria; also chloroplasts

Which of the following is not true for prokaryotic organism? A.Nucleus is not bounded by nuclear membrane B.Chromosomes does not contain histones C.80S ribosomes are distributed in cytoplasm D.Cell wall contains peptidoglycan as one of the major component

Description : Which of the following is not true for prokaryotic organism? A.Nucleus is not bounded by nuclear membrane B.Chromosomes does not contain histones C.80S ribosomes are distributed in cytoplasm D.Cell wall contains peptidoglycan as one of the major component

Last Answer : C.80S ribosomes are distributed in cytoplasm

Which of the following is not true for prokaryotic organism? A- Nucleus is not bounded by nuclear membrane B- Chromosomes does not contain histones C- 80S ribosomes are distributed in cytoplasm D- Cell wall contains peptidoglycan as one of the major component

Description : Which of the following is not true for prokaryotic organism? A- Nucleus is not bounded by nuclear membrane B- Chromosomes does not contain histones C- 80S ribosomes are distributed in cytoplasm D- Cell wall contains peptidoglycan as one of the major component

Last Answer : 80S ribosomes are distributed in cytoplasm

During the final stage of cell division, the mitotic apparatus disappears, the chromosomes become attenuated, the centrioles duplicate and split, the nuclear membrane becomes reconstituted and the nucleolus reappears. This phase of cell division is known as:

Description : During the final stage of cell division, the mitotic apparatus disappears, the chromosomes become attenuated, the centrioles duplicate and split, the nuclear membrane becomes reconstituted and the nucleolus reappears. This ... as: a) prophase (pron: prO-phase) b) metaphase c) anaphase d) telophase

Last Answer : ANSWER: D -- Telophase

The power house of the cell is (A) Nucleus (B) Cell membrane (C) Mitochondria (D) Lysosomes

Description : The power house of the cell is (A) Nucleus (B) Cell membrane (C) Mitochondria (D) Lysosomes

Last Answer : C

Which one of the following cell organelles is enclosed by a single membrane? (a) Lysosomes (b) Nuclei (c) Mitochondria (d) Chloroplasts

Description : Which one of the following cell organelles is enclosed by a single membrane? (a) Lysosomes (b) Nuclei (c) Mitochondria (d) Chloroplasts

Last Answer : (a) Lysosomes

Lysosomes arise from, (A) Nucleus (B) Endoplasmic reticulum (C) Golgi apparatus (D) Cell membrane

Description : Lysosomes arise from, (A) Nucleus (B) Endoplasmic reticulum (C) Golgi apparatus (D) Cell membrane

Last Answer : (C) Golgi apparatus

Assertion :- Disappearance of nuclear membrane is generally essential for karyokinesis Reason :- Forward movement of chromosomes is dependent on spind

Description : Assertion :- Disappearance of nuclear membrane is generally essential for karyokinesis Reason :- Forward movement of chromosomes is dependent on spind

Last Answer : Assertion :- Disappearance of nuclear membrane is generally essential for karyokinesis Reason :- Forward ... If both Assertion & Reason are false.

Reappearance of nuclear membrane & nucleolus along with thining & elongation in chromosomes are diagnostic characters for the phase:-

Description : Reappearance of nuclear membrane & nucleolus along with thining & elongation in chromosomes are diagnostic characters for the phase:-

Last Answer : Reappearance of nuclear membrane & nucleolus along with thining & elongation in chromosomes are diagnostic ... B. Metaphase C. Interphase D. Telophase

Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present

Description : Which of the following is not true for eukaryotic cells? A- Nucleus is bounded by nuclear membrane B- Chromosomes contain histones C- Chloroplasts and mitochondria contains 70S ribosomes D- Gas vacuoles are present

Last Answer : Gas vacuoles are present

Are genes 100% responsible for hereditary health problems or are common habits and routines responsible as well?

Description : Are genes 100% responsible for hereditary health problems or are common habits and routines responsible as well?

Last Answer : I think it's a combination of both. For example, teeth, there is a hereditary component to your susceptibility to cavities it doesn't mean it will happen if your parents don't have good ... compared to their adoptive parents situation I wonder if there are any studies like that Good question!

Where are genes located on chromosomes? -Biology

Description : Where are genes located on chromosomes? -Biology

Last Answer : answer:

Genes located on X-chromosomes are called

Description : Genes located on X-chromosomes are called

Last Answer : Genes located on X-chromosomes are called A. Sex influnced B. Sex limited C. Sex linked D. Maternal genes

What Traits controlled by genes located on sex chromosomes are what kind of traits?

Description : What Traits controlled by genes located on sex chromosomes are what kind of traits?

Last Answer : If a gene is found on the X chromosome (and, less commonly onthe Y chromosome), it is said to be asex-linked trait.There are about 1,098 human X-linked genes. Most of them codefor ... blindness.X-linked genes are also responsible for a common form ofbaldness referred to as "male pattern baldness".

What Traits controlled by genes located on sex chromosomes are what kind of traits?

Description : What Traits controlled by genes located on sex chromosomes are what kind of traits?

Last Answer : If a gene is found on the X chromosome (and, less commonly onthe Y chromosome), it is said to be asex-linked trait.There are about 1,098 human X-linked genes. Most of them codefor ... blindness.X-linked genes are also responsible for a common form ofbaldness referred to as "male pattern baldness".

The colour blindness is more likely to occur in males than in females because (a) the Y-chromosome of males have the genes for distinguishing colours (b) genes for characters are located on the sex- chromosomes (c) the trait is dominant in males and recessive in females (d) none of these.

Description : The colour blindness is more likely to occur in males than in females because (a) the Y-chromosome of males have the genes for distinguishing colours (b) genes for characters are located on the sex- chromosomes (c) the trait is dominant in males and recessive in females (d) none of these.

Last Answer : (b) genes for characters are located on the sex- chromosomes

Independent assortment of genes does not take place when (a) genes are located on homologous chromosomes (b) genes are linked and located on same chromosome (c) genes are located on non-homogenous chromosome (d) all of these.

Description : Independent assortment of genes does not take place when (a) genes are located on homologous chromosomes (b) genes are linked and located on same chromosome (c) genes are located on non-homogenous chromosome (d) all of these.

Last Answer : genes are linked and located on same chromosome

In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the same chromosome (b) both of the characters are controlled by more than one gene (c) the two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.

Description : In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the ... two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.

Last Answer : (a) the two genes are linked and present on the same chromosome

The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes? (a) Seven (b) Six (c) Five (d) Four

Description : The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes? (a) Seven (b) Six (c) Five (d) Four

Last Answer : Four

Cellular organelles with membranes are (a) endoplasmic reticulum, ribosomes and nuclei (b) lysosomes, Golgi apparatus and mitochondria (c) nuclei, ribosomes and mitochondria (d) chromosomes, ribosomes and endoplasmic reticulum.

Description : Cellular organelles with membranes are (a) endoplasmic reticulum, ribosomes and nuclei (b) lysosomes, Golgi apparatus and mitochondria (c) nuclei, ribosomes and mitochondria (d) chromosomes, ribosomes and endoplasmic reticulum.

Last Answer : (b) lysosomes, Golgi apparatus and mitochondria

The chromosomes responsible for characteristics other than sex are known by which of the following terms? a) ribosomes b) lysosomes c) autosomes d) spermatocytes

Description : The chromosomes responsible for characteristics other than sex are known by which of the following terms? a) ribosomes b) lysosomes c) autosomes d) spermatocytes

Last Answer : ANSWER: C -- AUTOSOMES 

Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Description : Enzymes catalyzing electron transport are present mainly in the (A) Ribosomes (B) Endoplasmic reticulum (C) Lysosomes (D) Inner mitochondrial membrane

Last Answer : D

Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Description : Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Last Answer : B

Which of the following are not membrane bound? (a) Lysosomes (b) Mesosomes (c) Vacuoles (d) Ribosomes

Description : Which of the following are not membrane bound? (a) Lysosomes (b) Mesosomes (c) Vacuoles (d) Ribosomes

Last Answer : (d) Ribosomes

Which of the following statements is not correct? (a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum. (b) Lysosomes have numerous hydrolytic enzymes. (c) The hydrolytic enzymes of lysosomes are active under acidic pH. (d) Lysosomes are membrane-bound structures.

Description : Which of the following statements is not correct? (a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum. (b) Lysosomes have numerous hydrolytic enzymes. (c) The hydrolytic enzymes of lysosomes are active under acidic pH. (d) Lysosomes are membrane-bound structures.

Last Answer : (a) Lysosomes are formed by the process of packaging in the endoplasmic reticulum.

Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Description : Which are the cholesterol esters that enter cells through the receptor-mediated endocytosis of lipoproteins hydrolyzed? (A) Endoplasmin reticulum (B) Lysosomes (C) Plasma membrane receptor (D) Mitochondria

Last Answer : (B) Lysosomes

Lysosomes have (A) Single-layered membrane (B) Double-layered membrane (C) Three-layered membrane (D) No membrane

Description : Lysosomes have (A) Single-layered membrane (B) Double-layered membrane (C) Three-layered membrane (D) No membrane

Last Answer : (A) Single-layered membrane

Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the cytoplasm. C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Description : Which does NOT occur in a cell stimulated by a steroid hormone? A) The steroid hormone enters the cell by crossing the plasma membrane. B) The hormone binds to a receptor molecule in the ... activates certain genes. E) DNA is transcribed, mRNA is translated, and the result is protein synthesis.

Last Answer : C) The second messenger cyclic AMP is stimulated by the hormone-receptor complex. D) The hormone-receptor complex binds the chromatin and activates certain genes.

Which of the following pairs of organelles does not contain DNA? (a) Nuclear envelope and Mitochondria (b) Mitochondria and Lysosome (c) Chloroplast and Vacuoles (d) Lysosomes and Vacuoles

Description : Which of the following pairs of organelles does not contain DNA? (a) Nuclear envelope and Mitochondria (b) Mitochondria and Lysosome (c) Chloroplast and Vacuoles (d) Lysosomes and Vacuoles

Last Answer : (d) Lysosomes and Vacuoles

$ Those genes which are present on "Y" chromosomes of human beings are called holandric genes. ! Holandric genes are present both in men as well as wo

Description : $ Those genes which are present on "Y" chromosomes of human beings are called holandric genes. ! Holandric genes are present both in men as well as wo

Last Answer : $ Those genes which are present on "Y" chromosomes of human beings are called holandric genes. ! Holandric ... wrong D. If both As and R are wrong.

What happens to the genes when 2 chromosomes embrace?

Description : What happens to the genes when 2 chromosomes embrace?

Last Answer : What is the answer ?

What is A situation in which genes are attached to an organisms sex chromosomes the sex of an organism influences the expression of a gene?

Description : What is A situation in which genes are attached to an organisms sex chromosomes the sex of an organism influences the expression of a gene?

Last Answer : s.e.x linked

Map of genome showing relative positions of genes and or markers on chromosomes

Description : Map of genome showing relative positions of genes and or markers on chromosomes

Last Answer : Ans. Genetic map

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.

Write note on (a) DNA (b) chromosomes (c) Genes

Description : Write note on (a) DNA (b) chromosomes (c) Genes 

Last Answer : (a) DNA  Deoxyribonucleic acid, or DNA, is a molecule that contains the instructions an organism needs to develop, live and reproduce.  These instructions are found inside every cell ... acts as instructions to make molecules called proteins  Genes are located on chromosomes 

What are the structures called that give an appearance as ‘beads-on-string’ in the chromosomes when viewed under electron microscope? (a) Genes (b) Nucleotides (c) Nucleosomes (d) Base pairs

Description : What are the structures called that give an appearance as ‘beads-on-string’ in the chromosomes when viewed under electron microscope? (a) Genes (b) Nucleotides (c) Nucleosomes (d) Base pairs

Last Answer : Nucleosomes

A woman with two genes for haemophilia and one gene for colour blindness on one of the ‘X’ chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons and 50% normal sons. (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.

Description : A woman with two genes for haemophilia and one gene for colour blindness on one of the X' chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons ... ). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.

Last Answer : (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier).

Which of the following statements is not true of two genes that show 50% recombination frequency? (a) The gene show independent assortment. (b) If the genes are present on the same chromo- some, they undergo more than one cross-overs in every meiosis. (c) The genes may be on different chromosomes. (d) The genes are tightly linked.

Description : Which of the following statements is not true of two genes that show 50% recombination frequency? (a) The gene show independent assortment. (b) If the genes are present on the same chromo- some, they ... every meiosis. (c) The genes may be on different chromosomes. (d) The genes are tightly linked.

Last Answer : (b) If the genes are present on the same chromo- some, they undergo more than one cross-overs in every meiosis.

What map unit (centimorgan) is adopted in the construction of genetic maps? (a) A unit of distance between genes on chromosomes, representing 50% cross over. (b) A unit of distance between two expressed genes, representing 10% cross over. (c) A unit of distance between two expressed genes, representing 100% cross over. (d) A unit of distance between genes on chromosomes, representing 1% cross over.

Description : What map unit (centimorgan) is adopted in the construction of genetic maps? (a) A unit of distance between genes on chromosomes, representing 50% cross over. (b) A unit of distance between two ... 100% cross over. (d) A unit of distance between genes on chromosomes, representing 1% cross over.

Last Answer : (d) A unit of distance between genes on chromosomes, representing 1% cross over.

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

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

A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromosome in anaphas

Description : A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromosome in anaphas

Last Answer : A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What ... & 100 chromosomes D. 50 DNA & 25 chromosomes

Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- Complete disintegration of nuclear envelope marks

Description : Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- Complete disintegration of nuclear envelope marks

Last Answer : Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- ... D. If both Assertion & Reason are false.

Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle? (a) Decondensation from chromosomes and reassembly of the nuclear lamina (b) Transcription from chromosomes and reassembly of the nuclear lamina (c) Formation of the contractile ring and formation of the phragmoplast (d) Formation of the contractile ring and transcription from chromosomes

Description : Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle? (a) Decondensation from chromosomes and reassembly of the nuclear lamina (b) ... and formation of the phragmoplast (d) Formation of the contractile ring and transcription from chromosomes

Last Answer : (c) Formation of the contractile ring and formation of the phragmoplast

A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics. (a) Cytokinesis Cell plate formed, mitochondria distributed between two daughter cells.(b) Telophase Endoplasmic reticulum and nucleolus not reformed yet. (c) Telophase Nuclear envelope reforms,Golgi complex reforms. (d) Late anaphase Chromosomes move away from equatorial plate, Golgi complex not present.

Description : A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics. (a) Cytokinesis Cell plate formed, mitochondria ... reforms. (d) Late anaphase Chromosomes move away from equatorial plate, Golgi complex not present.

Last Answer : (c) Telophase Nuclear envelope reforms,Golgi complex reforms.

Pyruvate dehydrogenase complex is located in (A) Cytosol (B) Lysosomes (C) Mitochondria (D) Endoplasmic reticulum

Description : Pyruvate dehydrogenase complex is located in (A) Cytosol (B) Lysosomes (C) Mitochondria (D) Endoplasmic reticulum

Last Answer : Answer : C

Lactate dehydrogenase is located in (A) Lysosomes (B) Mitochondria (C) Cytosol (D) Microsomes

Description : Lactate dehydrogenase is located in (A) Lysosomes (B) Mitochondria (C) Cytosol (D) Microsomes

Last Answer : Answer : C

Two dominant nonallelic genes are 50 map units apart. The linkage is (a) cis type (b) trans type (c) complete (d) absent/incomplete.

Description : Two dominant nonallelic genes are 50 map units apart. The linkage is (a) cis type (b) trans type (c) complete (d) absent/incomplete.

Last Answer : (d) absent/incomplete.

Antigens are present (a) inside the cytoplasm (b) on nuclear membrane (c) inside the nucleus (d) on cell surface.

Description : Antigens are present (a) inside the cytoplasm (b) on nuclear membrane (c) inside the nucleus (d) on cell surface.

Last Answer : (d) on cell surface.