The phenomenon, in which an allele of one gene suppresses the activity of an allele of another gene, is known as (a) epistasis (b) dominance (c) suppression (d) inactivation

The phenomenon, in which an allele of one gene
suppresses the activity of an allele of another gene,
is known as
(a) epistasis (b) dominance
(c) suppression (d) inactivation
by

1 Answer

Answer :

(a) epistasis
by

Related questions

A gene pair hides the effect of another gene. The phenomenon is called (a) dominance (b) segregation (c) epistasis (d) mutation

Description : A gene pair hides the effect of another gene. The phenomenon is called (a) dominance (b) segregation (c) epistasis (d) mutation

Last Answer : (c) epistasis

When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Description : When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Last Answer : (1) Epistasis Explanation: Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of ... may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.

When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Description : When one gene pair hides the effect of the other unit, the phenomenon is referred to as: (1) Epistasis (2) Mutation (3) None of the options (4) Dominance

Last Answer : Epistasis

Situations in which one allele for a gene is not completely dominant over another allele for that gene are called a. multiple alleles. b. incomplete dominance. c. polygenic inheritance. d. multiple genes.

Description : Situations in which one allele for a gene is not completely dominant over another allele for that gene are called a. multiple alleles. b. incomplete dominance. c. polygenic inheritance. d. multiple genes.

Last Answer : b. incomplete dominance.

.Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele expresses itself C. Pleiotropy (iii) In a heterozygous organism both alleles express themselves fully D. Polygenic (iv) A single gene inheritance influences many characters A B C D (a) (iv) (i) (ii) (iii) (b) (iv) (iii) (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Description : .Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele ... (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Last Answer : (d) (ii) (iii) (iv) (i)

A gene showing co-dominance has (a) alleles that are recessive to each other (b) both alleles independently expressed in the heterozygote (c) one allele dominant on the other (d) alleles tightly linked on the same chromosome.

Description : A gene showing co-dominance has (a) alleles that are recessive to each other (b) both alleles independently expressed in the heterozygote (c) one allele dominant on the other (d) alleles tightly linked on the same chromosome.

Last Answer : (b) both alleles independently expressed in the heterozygote

ABO blood group system is due to (a) multifactor inheritance (b) incomplete dominance (c) multiple allelism (d) epistasis.

Description : ABO blood group system is due to (a) multifactor inheritance (b) incomplete dominance (c) multiple allelism (d) epistasis.

Last Answer : (c) multiple allelism

When a single gene influences more than one trait it is called (a) pseudodominance (b) pleiotropy (c) epistasis (d) none of these.

Description : When a single gene influences more than one trait it is called (a) pseudodominance (b) pleiotropy (c) epistasis (d) none of these.

Last Answer : (b) pleiotropy

Two non-allelic genes produces the new phenotype w(a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.hen present together but fail to do so independently then it is called

Description : Two non-allelic genes produces the new phenotype when present together but fail to do so independently then it is called (a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.

Last Answer : epistasis

The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called: a) linkage b) mutation c) pleitropy (pron: ply-ah-tropy) d) epistasis (pron: eh-pis-te-sis)

Description : The type of gene interaction in which the effects of one gene override or mask the effects of other entirely different genes is called: a) linkage b) mutation c) pleitropy (pron: ply-ah-tropy) d) epistasis (pron: eh-pis-te-sis)

Last Answer : ANSWER: D -- EPISTASIS

Which of the following characteristics represent ‘inheritance of blood groups’ in humans? (i) Dominance (ii) Co-dominance (iii)Multiple allele (iv) Incomplete dominance (v) Polygenic inheritance (a) (ii), (iii) and (v) (b) (i), (ii) and (iii) (c) (ii), (iv) and (v) (d) (i), (iii) and (v)

Description : Which of the following characteristics represent ‘inheritance of blood groups’ in humans? (i) Dominance (ii) Co-dominance (iii)Multiple allele (iv) Incomplete dominance (v) Polygenic inheritance (a) (ii), (iii) and (v) (b) (i), (ii) and (iii) (c) (ii), (iv) and (v) (d) (i), (iii) and (v)

Last Answer : (b) (i), (ii) and (iii)

True statements about p53 include: a. a protein coded by a tumour suppressor gene b. it suppresses mitosis c. it is important regulators of apoptosis d. all above

Description : True statements about p53 include: a. a protein coded by a tumour suppressor gene b. it suppresses mitosis c. it is important regulators of apoptosis d. all above

Last Answer : all above

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a section of DNA that codes for a specific trait, while an allele is a specific version of a gene.

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a segment of DNA that contains the instructions for producing a specific protein or RNA molecule, while an allele is a variant form of a gene that can give rise to different traits.

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a section of DNA that contains the instructions for building a specific protein or RNA molecule, while an allele is a specific version of a gene that can differ in sequence and lead to different variations of a trait.

What is the difference between an allele and a gene?

Description : What is the difference between an allele and a gene?

Last Answer : A: A gene is a unit of hereditary information that determines a particular trait or characteristic, while an allele is a specific version of a gene that can differ in sequence from other alleles of the same gene and can result in different expressions of the trait.

What is the difference between an allele and a gene?

Description : What is the difference between an allele and a gene?

Last Answer : A: A gene is a sequence of DNA that codes for a specific trait, while an allele is one of two or more forms of a gene that may exist at a particular locus on a chromosome.

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a sequence of DNA that codes for a particular protein, while an allele is a variant form of a gene that produces a slightly different version of the protein.

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a segment of DNA that codes for a specific protein or RNA molecule, while an allele is a specific variant of a gene.

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a specific sequence of DNA that codes for a particular trait, while an allele is a variant form of a gene.

What is the difference between a gene and an allele?

Description : What is the difference between a gene and an allele?

Last Answer : A: A gene is a specific sequence of DNA that codes for a particular trait, while an allele is a variant form of a gene.

What is an allele of a gene? -Biology

Description : What is an allele of a gene? -Biology

Last Answer : answer:

with suitable example tell me what is the difference between gene and allele -Biology

Description : with suitable example tell me what is the difference between gene and allele -Biology

Last Answer : answer:

When one alleles of a gene masks the presence of the other allele what form is masked?

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Mr. Kapoor has Bb autosomal gene pair and d allele sex-linked. What shall be proportion of Bd in sperms? (a) Zero (b) 1/2 (c) 1/4 (d) 1/8

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Haploids are able to express both recessive and dominant alleles/mutations because there are (a) many alleles for each gene (b) two alleles for each gene (c) only one allele for each gene in the individual (d) only one allele in a gene.

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Identify the wrong statement with reference to the gene ‘I’ that controls ABO blood groups. (a) The gene (I) has three alleles. (b) A person will have only two of the three alleles. (c) When IA and IB are present together, they express same type of sugar. (d) Allele i does not produce any sugar.

Description : Identify the wrong statement with reference to the gene ‘I’ that controls ABO blood groups. (a) The gene (I) has three alleles. (b) A person will have only two of the three alleles. (c) When IA and IB are present together, they express same type of sugar. (d) Allele i does not produce any sugar.

Last Answer : (c) When IA and IB are present together, they express same type of sugar.

What are large randomly repeating non-coding DNA stretches called as? a. Satellite DNA b. Micro arrays c. Gene d. Allele

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Gametes have a. homologous chromosomes. b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene.

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A drug which does not produce any action by itself but decreases the slope of the log dose-response curve and suppresses the maximal response to another drug is a: A. Physiological antagonist B. Competitive antagonist C. Noncompetitive antagonist D. Partial agonist

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Last Answer : C. Noncompetitive antagonist

A drug which does not produce any action by itself but decreases the slope of the log dose-response curve and suppresses the maximal response to another drug is a: A. Physiological antagonist B. Competitive antagonist C. Noncompetitive antagonist D. Partial agonist

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Last Answer : C. Noncompetitive antagonist

$ Gregor mendel is also known as the "father of biology" ! He gave the law of Epistasis.

Description : $ Gregor mendel is also known as the "father of biology" ! He gave the law of Epistasis.

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ABO blood grouping is controlled by gene I which has three alleles and show co-dominance. There are six genotypes. How many phenotypes in all are possible? (a) Six (b) Three (c) Four (d) Five

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Last Answer : (c) Four

Which idea is depicted by a cross in which the F1 generation resembles both the parents? (a) Inheritance of one gene (b) Co-dominance (c) Incomplete dominance (d) Complete dominance

Description : Which idea is depicted by a cross in which the F1 generation resembles both the parents? (a) Inheritance of one gene (b) Co-dominance (c) Incomplete dominance (d) Complete dominance

Last Answer : (b) Co-dominance

What is Epistasis ?

Description : What is Epistasis ?

Last Answer : Epistasis is the process by which one gene inhibits the expression of another non-allelic gene.

Recessive epistasis is shown by

Description : Recessive epistasis is shown by

Last Answer : Recessive epistasis is shown by A. Flower colour in Sweat Pea B. Fruit colour of Summer Squash C. Coat colour of Mice D. Shape of comb in pultry

In a genetic cross having recessive epistasis, F2 phenotypic ratio would be (a) 9 : 6 : 1 (b) 15 : 1 (c) 9 : 3 : 4 (d) 12 : 3 : 1.

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Last Answer : (c) 9 : 3 : 4

Fruit colour in squash is an example of (a) recessive epistasis (b) dominant epistasis (c) complementary genes (d) inhibitory genes.

Description : Fruit colour in squash is an example of (a) recessive epistasis (b) dominant epistasis (c) complementary genes (d) inhibitory genes.

Last Answer : (a) recessive epistasis

The allele which is unable to express its effect in the presence of another is called (a) codominant (b) supplementary (c) complementary (d) recessive.

Description : The allele which is unable to express its effect in the presence of another is called (a) codominant (b) supplementary (c) complementary (d) recessive.

Last Answer : (d) recessive.

Occassionally a single gene may express more than one effect :This phenomenon is called:

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UV rays prove lethal due to inactivation of:

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Jamaican vomiting sickness is due to inactivation of the enzyme (A) Pyruvate carboxylase (B) Acyl-Co-A synthetase (C) Acyl-Co-A dehydrogense (D) Thiolase

Description : Jamaican vomiting sickness is due to inactivation of the enzyme (A) Pyruvate carboxylase (B) Acyl-Co-A synthetase (C) Acyl-Co-A dehydrogense (D) Thiolase

Last Answer : Answer : C

Acute pancreatitis is characterised by (A) Lack of synthesis of zymogen enzymes (B) Continuous release of zymogen enzymes into the gut (C) Premature activation of zymogen enzymes (D) Inactivation of zymogen enzymes

Description : Acute pancreatitis is characterised by (A) Lack of synthesis of zymogen enzymes (B) Continuous release of zymogen enzymes into the gut (C) Premature activation of zymogen enzymes (D) Inactivation of zymogen enzymes

Last Answer : Answer : C

Activation or inactivation of certain key regulatory enzymes is accomplished by covalent modification of the amino acid: (A) Tyrosine (B) Phenylalanine (C) Lysine (D) Serine

Description : Activation or inactivation of certain key regulatory enzymes is accomplished by covalent modification of the amino acid: (A) Tyrosine (B) Phenylalanine (C) Lysine (D) Serine

Last Answer : Answer : D

The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of (a) insertional inactivation of alpha galactosidase in recombinant bacteria (b) inactivation of glycosidase enzyme in recombinant bacteria (c) non-recombinant bacteria containing beta galactosidase (d) insertional inactivation of alpha galactosidase in non-recombinant bacteria.

Description : The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of (a) insertional inactivation of alpha galactosidase in recombinant ... beta galactosidase (d) insertional inactivation of alpha galactosidase in non-recombinant bacteria.

Last Answer : (c) non-recombinant bacteria containing beta galactosidase

The main reason why antibodies could not solve all the problems of bacteria mediated disease is (a) decreased efficiency of the immune system (b) insensitivity of the individual following prolonged exposure to antibiotics (c) development of mutant strains resistant to antibodies (d) inactivation of antibiotics by bacterial enzymes.

Description : The main reason why antibodies could not solve all the problems of bacteria mediated disease is (a) decreased efficiency of the immune system (b) insensitivity of the individual ... development of mutant strains resistant to antibodies (d) inactivation of antibiotics by bacterial enzymes.

Last Answer : (c) development of mutant strains resistant to antibodies

The following are true about chemicals involved in allergic reaction: a. thromboxane -leukocyte activation b. prostaglandin-2 - vasodilatation c. platelet-activating factor - leukocyte activation d. heparin - augments inactivation of prostaglandins

Description : The following are true about chemicals involved in allergic reaction: a. thromboxane -leukocyte activation b. prostaglandin-2 - vasodilatation c. platelet-activating factor - leukocyte activation d. heparin - augments inactivation of prostaglandins

Last Answer : prostaglandin-2 - vasodilatation

The following are true about G proteins: a. they are first messengers b. when activated, the alpha subunit exchange GDP for GTP c. they are transmembrane signal receptor molecules d. vibrio cholerae secrets an exotoxin which makes G-proteins resistant to inactivation

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Last Answer : when activated, the alpha subunit exchange GDP for GTP

During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by (a) carotene (b) cytochrome (c) leghaemoglobin (d) xanthophyll

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Last Answer : (c) leghaemoglobin