Medical genetics mcqs with answers

Speak now. You have blue eyes, your dad has green and your mom has brown. What now? How did that happen? Were you adopted? Are you an alien? Of course not! It's genetics! What exactly is genetics? Do you know? You do? Tell me, what the chance of having blue eyes is?

And how often do albinos appear? What is a genetic trait, and what's just a personality quirk? You know the answers to these questions? What about "Is liking chocolate something genetic? With questions like these, you'll be forced to take a walk to the genetics in your past and ask your family for the answers to these questions! Genetics Test: Would You Pass? The human genes hold a lot of things that scientist are still trying to figure out.

If you are a medical student you have probably read up on human genetics. The quiz below is designed to test just how much you know about Sample Question.The end product of translation are a amino acids b lipids c polypeptides d all of these.

All viruses consists of a DNA and protein coat b RNA and protein coat c Polysaccharides and proteins d a nucleic acid and a protein coat. In bacteria, a small circle of DNA found outside the main chromosome is called a a plasmid b protein c genetic fingerprint d episome. The lac operon in E. Genetic variation can be introduced into bacteria by all of the following methods except: a transduction b mutation c transformation d DNA amplification.

Which of the following would most likely cause a mutation with the greatest deleterious effect? Which of the following is true? Answers 1. Multiple Choice Questions on Animal Physiology with answers. Ecology MCQs with answer. Covers all topics of ecology, total MCQs in 13 Pages. Ecosystem 1. Ecology deals Multiple Choice Questions on Cell Cycle with answers.

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Multiple Choice Questions on Molecular Genetics 1. The end product of translation are a amino acids b lipids c polypeptides d all of these 2. All viruses consists of a DNA and protein coat b RNA and protein coat c Polysaccharides and proteins d a nucleic acid and a protein coat 3.

In bacteria, a small circle of DNA found outside the main chromosome is called a a plasmid b protein c genetic fingerprint d episome 4. Genetic variation can be introduced into bacteria by all of the following methods except: a transduction b mutation c transformation d DNA amplification 8.

Share this. Related Articles. More Coming soon…Keep visiting. Leave a reply Click here to cancel the reply Your email address will not be published.Genetics is the study of how living things pass traits or characteristics from one generation to another. Transmission and origin of specific inherited traits like colour of eyes, colour and texture of hair, height, hereditary diseases, etc.

It helps in various fields like agriculture, hereditary diseases, medicines, etc. The process of transfer of hereditary character from one generation to another is known as? Genes B. Mutation C. Variation D. Genetics Ans. Who is known as father of genetics?

Gregor Mendel B. Augustinian friar C. Norman Borlaug D. S Swaminathan Ans. Who coined the term Mutation? James Watson B. Herman Joseph Muller C. Hugo de Vries D. None of the above Ans.

GK Questions and Answers on Genetics

Which term of genetics represents the potential ability of a plant cell to grow into a complete plant? Pluripotency B. Totipotency C. Cloning D. Variation Ans.Both husband and wife have normal vision though their fathers were colour blind. The probability of their daughter becoming colour blind is.

medical genetics mcqs with answers

The chances of daughter becoming colour blind arises only when the father is also colour blind. Phenylketonuria is an inherited error of metabolism caused by a deficiency in the enzyme phenylalanine hydroxylase. It results in mental retardation and is inherited as an autosomal recessive trait.

Medical Genetics Questions

It is a hereditary human condition resulting from the inability to convert phenylaline into tyrosine. This change can be traced to a tiny mutation in a single gene on chromosome Haemophilia A is the most common X-linked genetic disease that prevents normal blood clotting when blood vessels are ruptured.

It appears in about in males. In most of the severe cases, an affected person can bleed to death from a bruise or cut. Haemophilia A is caused by the absence of a protein called antihaemophilic factor of factor VIII that is essential for blood clotting.

Down syndrome is a relatively common birth defect caused by the presence of an extra chromosome number 21 three instead of two number 21 chromosomes, or trisomy This chromosome abnormality adversely affects both the physical and intellectual development of the individual.

It is also the first syndrome to be described in humans. Other associated phenotypes of this condition are short stature, webbed neck, broad chest, lack of secondary sexual characteristics and sterility.

Multiple Choice Questions

Thus, any unbalance in the copies of the sex chromosomes may disrupt the genetic information necessary for normal sexual development. When a colour blind woman marries a normal man the recessive homozygous gene is expressed in sons whereas the daughters become carriers.

The gene for the normal vision is dominant. The normal gene and its recessive allele are carried by X- chromosomes. In females colour blindness appears only when both the sex chromosomes carry the recessive gene X C X C.

The females have normal vision but function as carrier if a single recessive gene for colour blindness is present XX C. However, in human males the defect appears in the presence of a single recessive gene X C Y because Y-chromosome of male does not carry any gene for colour vision.

The gene for albinism does not produce the enzyme tyrosinase but its normal allele does.Practice Quiz for Mendel's Genetics. Which of the following statements is true about Mendel? Mendel believed that the characteristics of pea plants are determined by the: a inheritance of units or factors from both parents b inheritance of units or factors from one parent c relative health of the parent plants at the time of pollination 4. An allele is: a another word for a gene b a homozygous genotype c a heterozygous genotype d one of several possible forms of a gene 5.

Assuming that both parent plants in the diagram below are homozygous, why would all of the f1 generation have yellow phenotypes?

medical genetics mcqs with answers

The idea that different pairs of alleles are passed to offspring independently is Mendel's principle of: a unit inheritance b segregation c independent assortment 9. In the diagram below, what accounts for the green pea seed in the f2 generation? The idea that for any particular trait, the pair of alleles of each parent separate and only one allele from each parent passes to an offspring is Mendel's principle of: a independent assortment b hybridization c segregation. Return to List of Practice Quizzes.

All rights reserved. A response will appear in the window below the question to let you know if you are correct. Be sure to read the feedback.

It is designed to help you learn the material. You can also learn by reading the feedback for incorrect answers. His discoveries concerning genetic inheritance were generally accepted by the scientific community when he published them during the mid 19th century.

He believed that genetic traits of parents will usually blend in their children.

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His ideas about genetics apply equally to plants and animals. Mendel believed that the characteristics of pea plants are determined by the:. Help Getting Started. The idea that different pairs of alleles are passed to offspring independently is Mendel's principle of:. On average, 1 out of 4 offspring of heterozygous parents will be homozygous recessive. The idea that for any particular trait, the pair of alleles of each parent separate and only one allele from each parent passes to an offspring is Mendel's principle of:.Skip to content.

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Skip to navigation. Try to answer these questions as fully as possible before going to model answers. In the model answers you will find key learning points and a brief medical discussion section. Q1 Cystic fibrosis: Sibling Carrier Risk. Q4 Recurrent Miscarriage. Q13 A Visit to the Neonatal Ward. Q14 Polyuria, Polydipsia and Tiredness. Q15 Alpha 1 Antitrypsin Deficiency. Carol and Frank present to you at 10 weeks gestation. Barbara is a 36 year old lady who presents with a breast lump.

Her mother had ovarian cancer at the age of 43 and a maternal aunt had breast cancer at the age of Barbara has heard that some breast cancer can run in families and as she has Jewish ancestry, she was wondering if this might be the case in her family.

Harry is a 43 year old man who presents with joint pains. He is a diabetic and was treated for erectile dysfunction last year. He appears tanned.

His sister is currently being investigated for cirrhosis. She has had four confirmed pregnancies with miscarriages between weeks. Her mother also had two miscarriages.

The maternal sister has profound learning difficulties. A 25 year old man presents to accident and emergency on a Saturday afternoon after collapsing while playing basketball.

medical genetics mcqs with answers

He has sharp central chest pain, a weak left radial pulse and a mild pectus excavatum. His grandfather died from a suspected heart attack while pushing his car in Africa last year.

A 22 year old woman makes an appointment at the GPs to discuss her acne. She has also noticed that light patches have appeared on her arm after a recent holiday in Spain. She has a history of epilepsy. Her mother has recently been diagnosed with a renal cell carcinoma. A 12 year old boy is taken to see the paediatric endocrinologist because of obesity, abdominal discomfort and poor behaviour.

His father previously had kidney stones and his older sister is being investigated for galactorrhoea. A 42 year old man is brought into accident and emergency by the police after being arrested for drink driving.

medical genetics mcqs with answers

No alcohol was detected on a breath test. He has slurred speech and appears uncoordinated. His wife had left him after he was diagnosed with depression. His father died from dementia at the age of A baby in the neonatal ward with a cleft palate starts to fit. The calcium is noted to be low. The father has recently been discharged from a psychiatric hospital with schizophrenia.

A 36 year old diabetic is seen in the ophthalmology clinic with cataracts. He complains that he finds it difficult moving his hands after carrying bags in cold weather.Essential topic for all PMT Exam. The innate tendency of offspring to resemble their parents is called a varaition b heridity c inheritance d resemblance.

The tendency of offspring to differ from parents is called a varaition b heridity c inheritance d resemblance. Who is regarded as the father of genetics? The physical expression or appearance of a character is called as a morphology b geneoype c phenotype d ecotype. Genotype is the a genetic constitution b genetic constitution of the phenotype c trait expressed d expressed genes. The alternate forms of a gene is called a recessive character b dominant character c alleles d alternative gene.

If the genotype consists of only one type of allele. It is called a homozygous b hetreozygous c momoallelic d uniallelic. The number of types of gametes produced by a homozygous individual is a 1 b 2 c 3 d many. If different alleles are present in the same genotype then it is called a homozygous b hetreozygous c diallelic d polyallelic. During his experiments, Mendel called genes by the term a factors b traits c characters d qualities.

The number of types of gametes produced by a heterozygous individual is a 1 b 2 c 3 d many. Mendel was a a Austrian biology teacher b Austrian monk c Austrian scientist d Austrian mathematician. Answers: 1. One who has life and NCERT topics are Multiple Choice Questions on Cell Cycle with answers. Multiple Choice Questions on Animal Physiology with answers.

Your email address will not be published. My Account. Toggle navigation. Go to the shop. The innate tendency of offspring to resemble their parents is called a varaition b heridity c inheritance d resemblance 2. The tendency of offspring to differ from parents is called a varaition b heridity c inheritance d resemblance 3. The physical expression or appearance of a character is called as a morphology b geneoype c phenotype d ecotype 8.

Genotype is the a genetic constitution b genetic constitution of the phenotype c trait expressed d expressed genes 9. The alternate forms of a gene is called a recessive character b dominant character c alleles d alternative gene It is called a homozygous b hetreozygous c momoallelic d uniallelic The number of types of gametes produced by a homozygous individual is a 1 b 2 c 3 d many If different alleles are present in the same genotype then it is called a homozygous b hetreozygous c diallelic d polyallelic


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