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Polygenic inheritance : NEET MCQ Questions

Are you looking for NEET MCQ Questions on Polygenic inheritance? If Yes then you are at right place. Here you will find Polygenic inheritance NEET MCQ Questions and Answers, Trivia, Quiz, Interview MCQ & Polygenic inheritance Current Affairs for Competitive Exams like Neet exams, around 30% to 40% of Neet questions are asked from given Polygenic inheritance Mcqs. as you know Questions and Ansers on Polygenic inheritance MCQS is very important for Neet Exam. In this Polygenic inheritance NEET section for Neet competition we are covering NEET MCQ Questions on Polygenic inheritance

Question 1 : Morphans syndrome is as a result of

A. Polygene

B. Pseudogene

C. Modifier gene

D. Pleiotropic gene

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Question 2 : Which of these illustrates pleiotropy?

A. Matings between earless sheep and long eared sheep always result in short eared offspring

B. Human cystic fibrosis causes many symptoms from respiratory distress to digestive problems

C. Wheat kerneis can range from white to red in color, a trait governed by multiple genes

D. The genes for scarlet eyes and hairy body in fruit flies are located on the same chromosome

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Question 3 : Pick the correct statement

A. Pleiotropic genes exhibit single phenotype

B. Pleiotropy is caused by a gene that has multiple phenotypic effect

C. Lethal genes causes the appearance of ancestral characters

D. Sickle cell anemia is an example of multifactorial inheritance

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Question 4 : One of the X chromosomes in females is inactivated by

A. environmental factors

B. enzymes coded for by mitochondrial DNA

C. number of dominant genes found on each X chromosome

D. epigenetic markers

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Question 5 : Traits which exhibit continuous phenotypic variation are typically determined by this inheritance form

A. incomplete dominance

B. polygene inheritance

C. multiple-allele inheritance

D. sex-linked inheritance

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Question 6 : Raju and Rani are planning a family, but sas each has a brother having the sickle-cell disorder, they are worried that their kids might develop the disorder too. Neither Raju, Rani nor their respective parents have the disorder. They decide to consult a genetic counsellor who conveys them this

A. its is possible that none of their kids will have the disorder, but blood tests on both of them should be carried out to confirm

B. all of their children will have sickle-cell disorder

C. one of four of their children can be expected to have sickle cell

D. there is no chance of any of their kids having sickle cell

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Question 7 : Polygenes exhibit

A. Different phenotypes

B. Different genotypes

C. Similar genotypes and phenotypes

D. Both (a) and (b)

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Question 8 : When two or more nonallelic gene pairs affect the same character in the same way, it is called

A. pleiotropy

B. polygenic inheritance

C. additive expressivity

D. total penetrance

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Question 9 : Marriages between close relatives should be avoided as it causes more

A. Abnormalities in child birth

B. Mutations

C. Recessive alleles to come together

D. Multiple births

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Question 10 : In corolla length of Nicotiana longiflora, polygenic inheritance was studied by

A. Joseph Kolreuter

B. E.M. East

C. Francis Galton

D. Nilsson-Ehle

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