Question 1:
What is meant by
(a) gene
(b) chromosomes
(c) DNA
Answer:
(a)
A gene is a basic hereditary unit that determines an individual’s characteristics.
(b)
Chromosomes are fine thread-like, long and spiral structures located in the nucleus.
(c)
Deoxyribonucleic acid or DNA is a two twisted antiparallel polynucleotide chain forming a structure known as double helix.
What is meant by
(a) gene
(b) chromosomes
(c) DNA
Answer:
(a)
A gene is a basic hereditary unit that determines an individual’s characteristics.
(b)
Chromosomes are fine thread-like, long and spiral structures located in the nucleus.
(c)
Deoxyribonucleic acid or DNA is a two twisted antiparallel polynucleotide chain forming a structure known as double helix.
Question 2:
Where do mitosis and meiosis take place in the human body?
Answer:
Mitosis takes place in the somatic cell and meiosis takes place in the reproductive organ.
Where do mitosis and meiosis take place in the human body?
Answer:
Mitosis takes place in the somatic cell and meiosis takes place in the reproductive organ.
Question 3:
State the similarities and differences between mitosis and meiosis.
Answer:
(Refer Figure 5.7, page 82 of the textbook, the double bubble map shows the similarities and differences between mitosis and meiosis)
State the similarities and differences between mitosis and meiosis.
Answer:
(Refer Figure 5.7, page 82 of the textbook, the double bubble map shows the similarities and differences between mitosis and meiosis)