The XXY klinefelter survive but trisomy in most autosome is lethal. Why?(a) Autosome carries more genes(b) Autosomes have better dominant recessive relations(c) X chromosomes are inactivated(d) Autosomes are more in numberThe question was posed to me in an online interview.This interesting question is from Dosage Compensation Mechanism for X linked Genes in division Chromosomes and Sex Determination of Cytogenetics

The XXY klinefelter survive but trisomy in most autosome is lethal. Wh

1.	The XXY klinefelter survive but trisomy in most autosome is lethal. Why?(a) Autosome carries more genes(b) Autosomes have better dominant recessive relations(c) X chromosomes are inactivated(d) Autosomes are more in numberThe question was posed to me in an online interview.This interesting question is from Dosage Compensation Mechanism for X linked Genes in division Chromosomes and Sex Determination of Cytogenetics
Answer» Right choice is (c) X chromosomes are inactivated To explain: Due to dosage COMPENSATION only ONE X CHROMOSOME in XXY says active. So the EFFECT of excess X chromosome is somewhat mitigated. In autosome there is no such inactivation and excess of GENE products leads to lethality.

Discussion

No Comment Found

Related InterviewSolutions

An X linked recessive gene would appear to __________________(a) Be expressed in both males and females equally(b) Skip generations(c) Be lethal(d) Gradually degradeThe question was posed to me in an online interview.The origin of the question is Sex Linked Inheritance in portion Chromosomes and Sex Determination of Cytogenetics
In yeast a MAT a type yeast can mate with __________(a) MAT alpha(b) MAT beta(c) MAT a(d) It can’t mateThe question was asked in class test.This is a very interesting question from Other Methods of Sex Determination topic in chapter Chromosomes and Sex Determination of Cytogenetics
If a bull doesn’t express the milking factor, where m+ is normal and m is a mutant gene, its genotype is?(a) m+/m+(b) m+/m(c) m/m(d) Can’t be specifiedThe question was posed to me in quiz.My enquiry is from Sex Influenced Traits and Sex Limited Traits in portion Chromosomes and Sex Determination of Cytogenetics
If present of horn in a breed of sheep is due to the presence of h+ allele which is sex influenced and more expressed in male, choose the off one out.(a) Female with h^+ h^+(b) Male with h^+ h^+(c) Female with h h^+(d) Male with h h^+I got this question at a job interview.Query is from Sex Influenced Traits and Sex Limited Traits topic in division Chromosomes and Sex Determination of Cytogenetics
Which one of the following is true for Drosophila?(a) They don’t have X chromosome(b) One of the female X chromosome is inactivated(c) The male Y chromosome is inactivated(d) The male X chromosome is hyper activeThe question was asked by my school teacher while I was bunking the class.My question is taken from Dosage Compensation Mechanism for X linked Genes topic in chapter Chromosomes and Sex Determination of Cytogenetics
If a chromosome loses its XIC due to deletion it will_______________________(a) Always be activated(b) Never be activated(c) Form Barr body(d) Be degradedI have been asked this question by my school teacher while I was bunking the class.I'd like to ask this question from Dosage Compensation Mechanism for X linked Genes in division Chromosomes and Sex Determination of Cytogenetics
A turner child born to normal parents is haemophilic. Where did the non-disjunction occur?(a) Mother(b) Father(c) Zygote(d) Grand motherThe question was posed to me during a job interview.My doubt stems from Sex Linked Inheritance topic in portion Chromosomes and Sex Determination of Cytogenetics
Patterned baldness is a sex influenced trait more expressed in a male. If b+ is normal allele making non-bald phenotype and b is mutant leading to bald phenotype, for a cross between a bald mother and normal father, what is the probability of a bald son?(a) 0(b) 1/4(c) 1/2(d) 1This question was posed to me at a job interview.I'm obligated to ask this question of Sex Influenced Traits and Sex Limited Traits in section Chromosomes and Sex Determination of Cytogenetics
Sex influenced traits are only related to females.(a) True(b) FalseThe question was asked in homework.Origin of the question is Sex Influenced Traits and Sex Limited Traits in chapter Chromosomes and Sex Determination of Cytogenetics
Tortoise shell or calico cats are always ________________ for O locus that is responsible for orange color development.(a) Homozygous(b) Heterozygous(c) Deleterious(d) DuplicationI have been asked this question in a national level competition.I'd like to ask this question from Dosage Compensation Mechanism for X linked Genes in section Chromosomes and Sex Determination of Cytogenetics

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment