Question
Differentiate between inbreeding and heterosis. What is inbreeding depression?

Answer

Inbreeding Heterosis
The cross between two individuals of a species that are related by descent is called inbreeding. The cross between two unrelated individuals or species or genus may develop an improved hybrid called heterosis.
The loss of vigour/ fertility and productivity due to continuous inbreeding especially close inbreeding is called inbreeding depression.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A vector is engineered with three features which facilitate its cloning within the host cell. List the three features and explain each one of them.
In the pyramid of biomass drawn below, name the two crops:
  1. One which is supported
  2. The one which supports.
In which ecosystem is such a pyramid found?
In a nucleus, the number of ribonucleoside triphosphates is 10 times the number of deoxy x10 ribonucleoside triphosphates, but only deoxy ribonucleotides are added during the DNA replication. Suggest a mechanism.
Answer the questions based on the dinucleotide structure shown below.
  1. Name the type of sugar guanine base is attached to.
  2. Name the linkage connecting the two nucleotides.
  3. Identify the 3 end of the dinucleotide. Give a reason for your answer.
What is the ecological principle behind the biological control method of managing with pest insects?
What are chasmogamous flowers? Can cross- pollination occur in cleistogamous flowers? Give reason for your answer.
Why are adolescents especially advised not to smoke? How does smoking affect the functioning of the body?
Identify the type of the given ecological pyramid and give one example each of pyramid of number and pyramid of biomass in such cases.
Define (i) Menarche (ii) Menopause (iii) Menstrual cycle.
Double fertilisation is reported in plants of both, castor and groundnut. However, the mature seeds of groundnut are non-albuminous and castor are albuminous. Explain the post fertilisation events that are responsible for it.