Biology

Chromosome duplication without nuclear division refers to

Chromosome duplication without nuclear division refers to Options (a) meiosis (b) mitosis (c) androgenesis (d) endomitosis Correct Answer: endomitosisExplanation:No explanation…

When vegetative cells of zygote form embryo, it is called

When vegetative cells of zygote form embryo, it is called Options (a) diploid polyembryony (b) apomixis (c) apospory (d) adventive…

The phenomenon ‘ontogeny repeats phylogeny’ is explained by

The phenomenon 'ontogeny repeats phylogeny' is explained by Options (a) recapitulation theory (b) inheritance theory (c) mutation theory (d) natural…

Which of these are most widely used in genetic engineering?

Which of these are most widely used in genetic engineering? Options (a) plastid (b) plasmid (c) mitochondria (d) ribosome Correct…

The plants which flower once in their lifetime are called as

The plants which flower once in their lifetime are called as Options (a) polycarpic (b) cleistogamous (c) monocarpic (d) bicarpic…

Cardiac muscles are different from that of skeletal muscles as

Cardiac muscles are different from that of skeletal muscles as Options (a) they are smooth (b) they are voluntary (c)…

Heating food to 100° C will prevent all but following diseases

Heating food to 100° C will prevent all but following diseases Options (a) Salmonella infection (b) cholera (c) botulism (d)…

In the development of a frog, the gastrulation process involves

In the development of a frog, the gastrulation process involves Options (a) epiboly (b) invagination (c) emboly (d) all of…

Mechanism of ATP production in aerobic respiration was given by

Mechanism of ATP production in aerobic respiration was given by Options (a) Krebs (b) Calvin (c) Hatch and Slack (d)…

Which of the following is an example of sex-linked inheritance?

Which of the following is an example of sex-linked inheritance? Options (a) night blindness (b) anaemia (c) colour blindness (d)…