Advertisements
Advertisements
प्रश्न
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
उत्तर
Polytene chromosomes are found in Salivary glands of fly larvae.
APPEARS IN
संबंधित प्रश्न
Correct the following statement if there is any mistake:
Genes are specific sequences of bases on a chromosome .
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 the contribution of the scientist given below in the study of chromosome:
Waldeyer
Choose the correct answer:
Chromosome number of man is _____________
Choose the correct answer:
Sex of an individual is determined by ____________
Enumerate the various changes that occur in the nucleus of the cell during anaphase of mitotic division.
How does colchicine act as mitotic poison? Is there any advantage of it?
Give Reasons for the following
The meiosis is called reductional division
(i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosome.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
Explain the Term Spindle
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Multiple Choice Question:
After mitotic cell division, a female human cell will have
Name the following:
The diploid number for cell of man.
Name the following:
Pair of genes responsible for a particular characteristic.
Identify the odd one:-
The loss of one or more chromosomes in ploidy is called ______.
Which of the following type of chromosomes has only one telomere?
Define Aneuploidy.
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
