Description : A mutation occurs in an eye cell of a fully-grown monkey. What will most likely happen to the monkey?
Last Answer : This depends on what kind of mutation occurs. You don't say whatthe mutation/result of the mutation is, so who knows what willhappen to the monkey
Description : How is it possible for a point mutation to have no effect on the function of the gene TAC CG?
Last Answer : Feel Free to Answer
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.
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
Last Answer : Epistasis
Description : All the following statements about retino blastoma are true except (A) At least two mutations are required for its development (B) One mutation can be inherited from a parent (C) Children ... mutation develop retinoblastoma at a younger age (D) RB 1 gene promotes the development of retinoblastoma
Last Answer : Answer : D
Description : A specific BRCA1 cancer-predisposing gene mutation seems to occur more frequently among women of which descent? a) Ashkanazi Jewish Expression of the BRCA1 gene is an example of ... of treatment for tuberculosis) are at significantly increased risk for developing isoniazid-induced hepatitis.
Last Answer : a) Ashkanazi Jewish Expression of the BRCA1 gene is an example of inheritance in the development of breast cancer.
Description : Ras proto-oncogene is converted into oncogene by (A) A point mutation (B) Chromosomal translocation (C) Insertion of a viral promoter upstream of the gene (D) Gene amplification
Last Answer : Answer : A
Description : Which enzyme will be produced in a cell if there is a nonsense mutation in the lac Y gene? (a) Transacetylase (b) Lactose permease and transacetylase (c) β-galactosidase (d) Lactose permease
Last Answer : β-galactosidase
Description : Pick out the correct statements. (1) Haemophilia is a sex-linked recessive disease. (2) Down's syndrome is due to aneuploidy. (3) Phenylketonuria is an autosomal recessive gene disorder. (4) Sickle cell anaemia is an X- ... are correct. (c) (1) and (4) are correct. (d) (2) and (4) are correct.
Last Answer : (b) (1), (2) and (3) are correct.
Description : What is gene mutation? -Biology
Last Answer : answer:
Description : How does a mutation in a gene affect the order of DNA based?
Last Answer : A mutation in a gene can happen by addition, deletion orsubstitution of base pairs. This means that the order of the baseswill change- a new base may be added, a base may be lost, or onebase ... occurs in a sex cell, themutation can be passed on to an offspring and affect theoffspring's phenotype.
Description : Cancer cells may become resistant to amethopterin by (A) Developing mechanisms to destroy amethopterin (B) Amplification of dihydrofolate reducatse gene (C) Mutation in the dihydrofolate reductase ... is no longer inhibited by amethopterin (D) Developing alternate pathway of thymidylate synthesis
Last Answer : Answer : B
Description : Retinoblastoma can result from a mutation in (A) ras proto-oncogene (B) erbB proto-oncogene (C) p 53 gene (D) RB 1 gene
Description : Marfan’s syndrome results from a mutation in the gene coding: (A) Collagen (B) Elastin (C) Fibrillin (D) Keratin
Description : Gamma rays can cause – (1) gene mutation (2) sneezing (3) burning (4) fever
Last Answer : (1) gene mutation Explanation: In molecular biology and genetics, mutations are accidental changes in a genomic sequence of DNA: the DNA sequence of a cell's genome or the DNA or RNA ... viruses, transposons and mutagenic chemicals, as well as errors that, occur during meiosis or DNA replication.
Description : A heritable change in DNA is called a ______. a. mistake b. mutation c. gene d. pathogen
Last Answer : b. mutation
Description : Which type of Mendelian inherited condition results in both genders being affected equally in a vertical pattern? a) Automosomal dominant inheritance An individual who has an autosomal dominant ... that combine during early embryonic development leading to incomplete closure of the neural tube.
Last Answer : a) Automosomal dominant inheritance An individual who has an autosomal dominant inherited condition carries a gene mutation for that condition on one chromosome of a pair.
Description : Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two ... genetic condition that may occur in a single family member as a result of spontaneous mutation.
Last Answer : a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes.
Description : 27. A ‘single step-large mutation’ is known as ... b) Branching descent b) Natural Selection c) Saltation d) Gene Migration
Last Answer : c) Saltation
Description : 7. A ‘single step-large mutation’ is known as ... a) Branching descent b) Natural Selection c) Saltation d) Gene Migration
Description : _______________ acts to inhibit reproductive isolation. A) Mutation B) Natural selection C) Genetic drift D) Gene flow
Last Answer : D) Gene flow
Description : The origin of a new species first requires A) reduced gene flow. B) increased gene flow. C) reduced mutation rates. D) increased mutation rates.
Last Answer : A) reduced gene flow.
Description : If a gene mutation prevents formation of an enzyme normally used by a lysosomes, a disease may result known as (A) Lysosomal abstracted disease (B) Lysosomal secretory disease (C) Lysosomal storage disease (D) All A, B and C
Last Answer : (C) Lysosomal storage disease
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
Description : Gamma rays can cause (1) gene mutation (2) sneezing (3) burning (4) fever
Last Answer : gene mutation
Description : Which of the following terms refers to the decrease in lens flexibility that occurs with age, resulting in the near point of focus getting farther away? a) Presbyopia Presbyopia usually begins in ... lens of the eye. d) Glaucoma Glaucoma is a disease characterized by increased intraocular pressure.
Last Answer : a) Presbyopia Presbyopia usually begins in the fifth decade of life, when reading glasses are required to magnify objects.
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
Description : The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein
Last Answer : .is located immediately upstream of the start codon
Description : The rivosome binding site A- forms a sltem- loop structure in the RNA B- is located upstream of the promoter sequence C- is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein
Last Answer : is located immediately upstream of the start codon
Description : what do you mean by sex influenced gene? -Biology
Description : What is sex linked gene ?
Last Answer : The sex linked gene is the gene located on the sex chromosome. There are more than 50 sex-linked genes in human sex chromosomes.
Description : $ Haemophilia is a sex linked disease ! Haemophilia is due to a recessive gene.
Last Answer : $ Haemophilia is a sex linked disease ! Haemophilia is due to a recessive gene. A. If both As and R are ... R is wrong D. If both As and R are wrong.
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
Description : .A diseased man marries a normal woman. They get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is (a) sex linked dominant (b) sex linked recessive (c) sex limited character (d) autosomal dominant.
Last Answer : (a) sex linked dominant
Description : 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
Last Answer : (c) 1/4
Description : Testosterone therapy started in a boy of 8 years and continued till puberty is likely to: A. Increase adult stature B. Reduce adult stature C. Have no effect on adult stature D. Cause hypertrophy of penis
Last Answer : B. Reduce adult stature
Description : The unit in which mutation occurs
Last Answer : Ans. Muton
Description : A silent mutation is most likely to result from (A) Substitution of the first base of a codon (B) Substitution of the third base of a codon (C) Conversion of a nonsense codon into a sense codon (D) Conversion of a sense codon into a nonsense codon
Description : The most likely lethal mutation is (A) Substitution of adenine for cytosine (B) Insertion of one nucleotide (C) Deletion of three nucleotides (D) Substitution of cytosine for guanine
Description : The most striking example of point mutation is found in a disease called (a) Down’s syndrome (b) sickle cell anaemia (c) thalassaemia (d) night blindness.
Last Answer : (b) sickle cell anaemia
Description : Can a human mate with a monkey, chimpanzee, or other primate, and produce offspring?
Last Answer : No. We are of a different species. That’s what “species” means.
Description : Are there any online pygmy chimpanzee doctumetries?
Last Answer : Holy crap, so would I. But I don’t think it exists from the quick search I just did. Try your local library for Bonobo Chimps This is all I got, and it ain’t much.
Last Answer : The gestation period of a chimpanzee is 250 days
Description : Assertion: Among the primates, chimpanzee is is the closest relative of the present day humans. Reason : The banding pattern in the autosome numbers 3
Last Answer : Assertion: Among the primates, chimpanzee is is the closest relative of the present day humans. ... If both the assertion and reason are false.
Description : What kind of evidences suggested that man is more closely related with chimpanzee than with other hominoid apes?
Last Answer : What kind of evidences suggested that man is more closely related with chimpanzee than with other ... D. Eivdence from DND from sex chromosomes only
Description : The banding pattern of chromosomes 3 and 6 of man and chimpanzee showed that they have
Last Answer : The banding pattern of chromosomes 3 and 6 of man and chimpanzee showed that they have A. ... . same number of chromosomes D. similar blood groups
Description : What is the diploid number of an chimpanzee?
Last Answer : Need answer
Description : What are chimpanzee adaptation?