Introduction to Genetics

Q.

What are multiple alleles? explain the Characteristics of multiple alleles.

Q.

What are the monomers of DNA called?

Q. Breeding of crops with high levels of minerals, vitamins, and proteins is called

1. Somatic hybridization
2. Biomagnification
3. Micropropagation
4. Biofortification

Q.

Mention any 2 features of genetic codes.

Q.

What is the difference between physiology and pathophysiology?

Q.

What are hybrid seeds and plants?

Q.

How does gel electrophoresis work?

Q. Match the terms in column I with their explanations in column II. [5 MARKS]

Column I	Column II
(a) Genetics	(i) Chromosomes similar in size and shape.
(b) Autosomes	(ii) The alternative forms of a gene.
(c) Recessive	(iii) Study of laws of inheritance of characters.
(d) Allele	(iv) A gene that can express only when in a similar pair.
(e) Homologous chromosomes	(v) Chromosomes other than the pair of sex chromosomes.

Q.

Are oranges without seeds genetically modified?

Q.

Who is the father of human genetics?

1. Charles Darwin

2. H.G Khorana

3. Gregor Johann Mendel

4. All of them

Q.

Question 10
Explain how sexual reproduction gives rise to more viable variations than asexual reproduction. How does this affect the evolution of those organisms that reproduce sexually?

Q.

Which of the following is responsible for heredity in most organisms?

1. Vacuole

2. Proteins

3. Mitochondria

4. DNA

Q.

How does genetic code work?

Q.

Which of the following factors can help in maintaining good social health?

1. Peer group

2. Respect for and acceptance of others

3. Trust in others

4. All of the above

Q.

How can alleles interact with one another?

Q. Who is known as the 'father of genetics'?

1. Darwin
2. Lamarck
3. Mendel
4. Morgan

Q. The technique which makes use of amniotic fluid for the detection of prenatal disorder is called ___.

1. Amniocentesis
2. Laparoscopy
3. Endoscopy
4. Ultrasound

Q. Which one is not a nitrogenous bases in DNA?

1. Thymine
2. Guanine
3. Uracil
4. Cytosine

Q.

How can we prevent genetic disorders?

Q.

Inheritance is the process of transmission of parental characters to ___ .

1. siblings

2. offsprings

3. mutants

4. other parents

Q.

What is a selectable marker?

Q. How does DNA molecules or genes or traits are transferred in the gamete during gamete formation??

Q.

DNA copying mechanism creates variations which are useful for ensuring the survival of the species.

1. True
2. False

Q. Define the term genetics.

Q. A cross where two pairs of alleles are considered is a
(a) dihybrid cross
(b) monohybrid cross
(c) polyhybrid cross
(d) test cross

Q. Molecular biology is the study of

1. structure, function and reproduction of cell
2. physico-biochemical studies of biomolecules
3. studying tissues under a microscope
4. metabolic activity of life

Q.

What does a correction of a genetic defect involve?

Q. Who is known as father of biochemical/ physiological genetics?

1. Slatyer
2. Eltoin
3. Taylor
4. Archibald Garrod

Q. Pharm animals is one of the future promises of genetic engineering.

1. True
2. False

Q.

The term genetics was coined by

1. bateson

2. Mendel

3. Muller

4. Morgan