Question
What does the following equation represent? Explain.
$p^2+ 2 pq + q^2 = 1$

Answer

Hardy Weinberg's Principle/allele frequencies in a population are stable and is constant from generation to generation,/represents stable allelic frequency in a population indicating no evolution occurring, $p ^2$ frequency of homozygous dominant/AA, 2 pq frequency of heterozygous/Aa. $q^2$ frequency of homozygous recessive/aa.

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 person has been diagnosed to be HIV positive.
  1. Name the test which the person underwent.
  2. Write the full name of the pathogen involved and describe its structure.
  3. Which particular cells of this person are likely to get destroyed?
Answer the following questions:
Still it is observed that it does not form a continuous layer around the pollen grain. Give reason.
How transgenic animals are produced.?
In a maternity clinic, for some reasons the authorities are not able to hand over the two new-borns to their respective real parents. Name and describe the technique that you would suggest to sort out the matter.
What are the preventive measures for malaria?
In the figure given below label the following parts: male gametes, egg cell, polar nuclei, synergid and pollen tube,
When someone buys packets of cigarettes, cannot miss the statutory warning that is present on the packing which warns against smoking and says how it is injurious to health. Yet, smoking is very prevalent in our society, both among young and old. Advise the adolescents about the importance of avoiding smoking. (Mention any six points.)
Ram saw a farmer spraying some chemicals on flowers. On asking farmer, he came to know that this act will lead to the formation of fruits without fertilisation. Ram thought that fruits developed in this way are not good to eat as chemicals are sprayed on it.
Next day, he asked his biology teacher about it, who explained him everything.
  1. What chemicals were sprayed by the farmer?
  2. Give difference between such a spray and usual pesticide spray?
  3. What is parthenocarpy? Give its types.
  4. What values are shown by Ram?
Why is breast-feeding recommended during the initial period of an infant’s growth? Give reasons.
Discuss the importance of testing of new plant varieties in a geographically vast country like India.