Which of these components is/are not present in Gram negative bacteria?

• Teichoic acid

• Pseudomurein

• Lipopolysaccharide

• Mycolic acid

Which of the following features is/are correct for heterochromatin of eukaryotic nucleus?

• It is highly expanded in interphase

• It stains densely with basic dyes

• It is highly condensed in interphase

• It stains densely with acidic dyes

Which of the followings is/are correct for the inheritance of genes involved in human 'ABO' blood grouping?

• It is inherited by complete dominant allele

• It is inherited by complete recessive allele

• It is inherited by codominant allele

• It is inherited by single gene with more than two alleles

Antelope cervicapra is

• a mammal

• commonly known as black back

• an animal under data deficient category of wildlife

• a threatened Indian wildlife

A set of genes will be in a complete linkage when the progeny phenotypes for parental (P) and recombinant (R) types are

• P = 0%, R =100%

• P = 50%, R = 50%

• P < 50%, R > 50%

• P = 100%, R = 0%

Which one of the following statements is wrong in relation to transgenic Bt cotton plant?

• Crop yield loss due to the attack by Bacillus thuringiensis bacterium is reduced

• Crop yield loss due to the attack by lepidopteran insect pests is reduced

• The use of chemical insecticides in the cotton field is minimised

• Better quality cotton is produced

67.

Which one of the following natural polymers is found both in insects and fungi?

• Pectin

• Chitin

• Cellulose

• Suberin

Third stage larva of Wuchereria bancrofti carried by Gulex mosquito is called

• cysticercus

• merozoite

• microfilariae

• trophozoite

Persons suffering from sickle-cell anaemia normally do not suffer from

• cholera

• malaria

• high blood pressure

• hepatitis

Two related but geographically isolated species are known as

• sibling species

• sympatric species

• taxonomic species

• allopatric species