The undifferentiated mass of the cells formed from the division of explant in an artificial media, under controlled conditions is called a callus. Callus contains actively dividing meristematic cells that are totipotent and are capable of giving rise to a whole plant.

Heterosis is the phenomenon in which progeny of various varieties of a species or crosses between species exhibit greater biomass, as well as the speed of development, and fertility of either of the parents. Various models have been posted to explain heterosis, including the concept of dominance, overdominance, and pseudo-overdominance.

Totipotency is the ability of a cell to differentiate and give rise to a whole new organism. Totipotency is exhibited by the cells such as embryonic stem cells that can differentiate into any type of body cell.

Artificial hybridization helps to develop quantitative outcomes in the cattle. Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically. It results in homozygosity, which can increase the chances of offspring being affected by deleterious or recessive traits. An individual who inherits such deleterious traits is colloquially referred to as inbred.

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Biology in Human Welfare>Chapter 9 - Strategies for Enhancement in Food Production>Meghalaya Board-2018

Embibe Experts Solutions for Exercise 1: Meghalaya Board-2018

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Embibe Experts Biology Solutions for Exercise - Embibe Experts Solutions for Exercise 1: Meghalaya Board-2018

Attempt the free practice questions from Exercise 1: Meghalaya Board-2018 with hints and solutions to strengthen your understanding. EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY solutions are prepared by Experienced Embibe Experts.