ABO blood group in man is controlled by _____.

(a)

Multiple alleles

(b)

Lethal genes

(c)

Sex linked genes

(d)

Y-linked genes

XO type of sex determination and XY type of sex determination are examples of ______.

(a)

Male heterogamety

(b)

Female heterogamety

(c)

Male homogamety

(d)

Both (b) and (c)

Pataus syndrome is also referred to as ______.

(a)

13-Trisomy

(b)

18-Trisormy

(c)

21-Trisormy

(d)

None of these

The inheritance of blood group is determined by multiple alleles as discovered by _________.

(a)

Landsteiner

(b)

Bernstein

(c)

Alexander castelle

(d)

lyon

XX - XO type of sex determination is in ______.

(a)

Cockroaches

(b)

Drosophila

(c)

Humans

(d)

Moths

__________ was first reported by John Cotto.

(a)

Erythroblastosis foetalis

(b)

Haemophilia

(c)

Colour blindness

(d)

Haplodiploidy

The gene responsible for ________ is inherited as an autosomal recessive lethal gene in man

(a)

Huntington's chorea

(b)

Albinism

(c)

Colourblindness

(d)

Phenylketonuria

One gene 'L' controlling blood groups is named after_________.

(a)

c. B. Bridges

(b)

Henking

(c)

Landsteiner

(d)

Stevens

The XX - XY type of sex determination is also known as ________ type.

(a)

Haploid - diploid

(b)

Lygaeus

(c)

Gynandromorphs

(d)

Genic balance

A gene showing codominance has:

(a)

Alleles tightly linked on the same chromosome.

(b)

Alleles that are recessive to each other

(c)

Both alleles independently expressed in the heterozygote

(d)

One allele dominant on the other

Pick out the odd man out.

(a)

Klinefelter's syndrome

(b)

Turner's syndrome

(c)

Huntington's chorea

(d)

13-Trisomy

Identify the proper ratio of normal visioned individuals against colorblind individuals, if colorblind carrier female marries a normal male.

(a)

1 : 1

(b)

3 : 1

(c)

1 : 3

(d)

All four are normal visioned

Pick out the correct statement
(i) Karyotyping helps in gender identification
(ii) Holandric genes are located on X-chromosome
(iii) Trisomy-21 is an allosomal abnormality
(iv) Cooley's anaemia is an autosomal recessive disorder

(a)

i, iii, iv are correct

(b)

ii and iii are correct

(c)

i and iv are correct

(d)

iv only correct

DOPA stands for __________

(a)

3,4 - dihydroxy phenyl acetate

(b)

3,4 - dihydroxy phenyl alanine

(c)

3,4 - dihydroxy phenyl asparate

(d)

3,4 - dihydroxy phenyl aldehyde

I^A and I^B genes of ABO blood group are __________

(a)

Co-dominant

(b)

Pleotropic

(c)

Dominant and recessive

(d)

Epistatic

What is haplodiploidy?

What is criss-cross inheritance?

What are holandric genes?

How does hemophilia affect an individual?

Name the discoverers of antigen A, B, and AB.

State Wiener Hypothesis on Rb-factor.

Expand (a) SRY (b) TDF

Mention few X-linked inherited diseases

Complete the equation.
(a) Phenylalanine \(\underrightarrow { A } \) Tyrosine
(b) DOPA \(\underrightarrow { B } \) Melanin

Mention the genetic makeup of Turner's syndrome person and Klinefelter's syndrome person.

Mention the symptoms of Down's syndrome.

Explain the genetic basis of ABO blood grouping man.

What is male heterogamety?

What is sex Index?

What is the role of the gene responsible for colour blindness in a normal human beings?

What is karyotyping?

What is the chemical reaction that is affected in people suffering from Albinism?

What is Sex-switch gene?

Name the type of sex-determination mechanism of the following organisms. (a) Gypsy moth (b) Human beings (c) Butterflies

Give an account on Patau's syndrome.

Explain the mode of sex determination in honeybees.

What are the applications of Karyotyping?

Explain the inheritance of sex linked characters in human being.

Explain criss-cross pattern of inheritance with an example. (or) Explain Inheritance of colour blindness.

Write notes on chromosomal abnormalities in human beings. (or) What is aneuploidy? Explain it

Explain in detail about Erythroblastosis foetalis.

Write elaborately about the following Mendelian disorders.
(a) Thalassemia (b) Albinism