Advertisements
Advertisements
प्रश्न
Expand the following biological abbreviations :
DNA
उत्तर
Deoxyribose Nucleic Acid
APPEARS IN
संबंधित प्रश्न
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
Mention whether the following statement is (T) Or (F). Give reason in support of your answer.
The unfertilized human egg has half the number of chromosomes of the body cells.
Write a sentence of the following:
Centromere
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Give a reason for the following:
Gametes must be produced by meiosis for sexual reproduction.
Give Reasons for the following
Chromosomes are the carriers of heredity.
Identify the stages of meiosven below and label them.
Explain the Term Leptotene
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
Name the following:
The number of chromosomes present in human gametes.
Give Technical Term:
Transmission of characters through generations.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
Multiple Choice Question
Chromosomal aberrations are caused by:
Very Short Answer Question.
What is allosome?
Describe the structure of sex chromosomes with the help of labelled diagram.
The number of chromosomes found in human beings is ______.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
Distinguish between the following pair:
Karyotype and Karyokinesis
