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प्रश्न
Chromosomes are mainly made up of ______.
विकल्प
Inheritance
sexual reproduction
asexual reproduction
chromosomes
DNA
RNA
gene
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उत्तर
Chromosomes are mainly made up of DNA.
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संबंधित प्रश्न
Synthesis phase in the cell cycle is called so, because of the synthesis of more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose
Name the sex chromosomes in human males and females
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Answer the following question in your own words.
What is meant by ‘chromosome’?
Choose the correct answer:
Chromosomes number is halved in ____________
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Write a sentence of the following:
Centromere
Choose the correct answer:
Telocentric chromosomes are _________________
Why gametes have a haploid number of chromosomes?
State how does meiosis maintains chromosome number in a species.
(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 period between two successive mitotic divisions is
Give Reason:
The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
Multiple Choice Question
Chromosomal aberrations are caused by:
The loss of one or more chromosomes in ploidy is called ______.
Define Aneuploidy.
A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
Given below is a set of four term. Choose the odd one and write the category of the remaining term:
