The class of antibodies, which can cross the placenta is

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#Question id: 5739

#Part-A Aptitude & General Biotechnology

Polyploid plants found in nature usually have even numbers of chromosomes because organisms having odd numbers

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#Question id: 5740

#Part-A Aptitude & General Biotechnology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

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#Question id: 5741

#Part-A Aptitude & General Biotechnology

In a mammal 2 Barr bodies are observed.  How many X chromosomes does the organism have?

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#Question id: 5742

#Part-A Aptitude & General Biotechnology

When an allotetraploid (AABB) is backcrossed to one of its progenitor species (AA), a sterile progeny is produced.  The genomic composition of this sterile individual can be best represented by

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#Question id: 5743

#Part-A Aptitude & General Biotechnology

Euploidy is

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#Question id: 5744

#Part-A Aptitude & General Biotechnology

The basic diploid chromosome number in Rye Secale cereale is 14. A new species of rye is found that has 28 chromosome species. This species is said to be