Explore topic-wise MCQs in Biotechnology.

An odd number of cross overs in inverted region will result into formation of a dicentric chromatid and acentric chromatid at anaphase I incase of

Exchange of segments between non homologous chromosomes is best known as

How does dosage compensation in Drosophila occur?

Hairy wing character of Drosophila is due to

A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as

Incase of inversion when the inverted segment of chromosome includes centromere, it is known as

How many chromosomes are there in the budding yeast (S. cerevisiae)?

How many chromosomes are there in Caernorhabditis elegans?

The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as

Diethyl stilbestrol (DES), a synthetic estrogen causes

Bar eye character of Drosophila is due to

Transmission of a gene from male parent to female child to male grand child is known as

The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as

Which of the following is correct when a character shows continuous variation assuming a normal distribution?

Which of the following denotes a pair of contrasting characters?

A map of chromosomes that utilizes cloned and sequenced DNA fragments rather than genetic markers is known as

A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of

In an organism, the chromosome number is maintained constant because of

If two genes show 50% recombination

In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of

Raphanobrassica is a classical example of