Genetics (Sex Determination, Neurospora Genetics) Test - Botany, Class 12 - Class 12 MCQ

Pro. R.P.Roy

H.E.Warmke

C.B. Bridges

Mc. clung

It is the example of inducible operon

It is example of repressible operon

(2) and (3) both are correct

c – DNA

DNA probe

Sticky end

Blunt end

Male individuals

Female individuals

Intersex

Any of the above

Hybridoma technique

PCR-technique

Gene cloning

r-DNA technology

Inducer

aporepressor

Co–repressor

Regulator

Each gene has many alleles

Many genes has only one allele

It has only one allele of a gene

There are two alleles of a gene

No crossing over.

First division segregation.

second division segregation or presence of crossing over.

Some meiosis.

Inactive repressor + Co-repressor = active repressor

Active repressor + Inducer = inactive repressor

β galactosidase

Thiogalactoside transacetylase

Lactose dehydrogenase

Lactose permease

Southern blotting

Gel electrophoresis

Restriction enzyme digestion

Northern blotting

4

32

64

16

Enzyme polymerase is not included

The mammalian DNA is shown double stranded

Only one fragment is inserted

Two different restriction enzymes are used

Band 3 contains more positively charged  DNA molecule than 1

Band '3' indicates more charge density than 1 and 2

Band 1 has longer DNA fragment than 2 and 3

All the bands have equal length and charges but differ in base composition

X–Chromosome plays important role in sex determination

X–Chromosome does not play any role in sex determination

Y–Chromosome does not play any role in sex determination

Y–Chromosome required for maleness.

DNA

RNA

Protein

All the above

Gel electrophoresis

PCR-technique

Centrifugation

Southern blotting

Male

Female

Bisexual

Unisexual

Bacillus thuriengensis

Rhizobium

Bacillus polymyxa

Clostridium

Toxicity

Allergic reaction

Antibiotic resistance in micro organism present in alimentary canal

All the above

Transduction

Conjugation

Transformation

Electroporation

'a' and 'c'

'c' and 'd'

'a' and 'd'

'b' and 'd'

No. of Y–chromosome

No. of X–chromosomes

Ratio between number of X chromosome and the set of autosome

Sets of autosome

Production of transgenic microbes

Production of genetically modified food

Forensic investigation

r–DNA technique

A gene present on X–chromosome

A segment of RNA

A proteinaceous factor

A gene present on Y–chromosome

Natural DNA obtained from bacteria and yeast

Useful vectors for eucaryotic gene transfer

Artificial DNA obtained from bacteria and yeast

(2) & (3) both

Not always required in genetic engineering

Essential tool in genetic engineering

Nucleases that cleave DNA at specific sites

(2) and (3) both

Albinism

Haemophilia

SCID

LIQID

DNA finger printing

Detection of  pathogenic bacteria

Medical genetics to find whether a person carries a particular gene or not

All the above

Loss of one X-chromosome

Segregation of X- chromosome in female

Non disjunction of X- chromosome in female

Non disjunction of X- chromosome in male