Wednesday, April 2, 2025

Mitosis And Meiosis/ Test/ Marks 30/2025

Q1. Define
A. Karyokenisis
B.Cytokinesis

Q2. Give differences  between Mitosis and Meiosis  based on 
A. Numbers of daughter cell produced 
B. Chromosome numbers  in daughter  cell.
Q3. Name the following 
1. A pair of corresponding chromosomes of the same shape, size and one from each parent is called.
2. The basic units of heredity.
3.The nitrogenous base that pairs with adenine.
4.A cell formed by the fusion of gametes
5.Duplicated chromosomes are joined at a point termed as.


Q4.Arrange and rewrite the term in the group in the correct order so as to be in a logical sequence, beginning with the term that is underlined.

Cell membrane, Chromatin fibres, Cell wall, Cytoplasm.


Q5.
1.State Mendel's Law of Segregation.

2.Differentiate Between Genotype and Phenotype.

3. What is the scientific name of the pea plant that Mendel used for his experiments?

4. During Mitosis what is the position of chromatids in metaphase?

5. Four friends P, Q, R and S were discussing the examples of genetic disorders. The examples they quoted were as follows:

P. Colour blindness and Malaria

Q. Albinism and Cholera

R. Haemophilia and Colour

blindness

S. Haemophilia and Albinism

Who gave the correct examples?

6. A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?

7. Given below is a schematic representation of the inheritance of the shape of the seeds of garden peas.

Answer the questions that follow:
a. Which is the dominant and recessive allele of the trait?

b. What does the ratio 3: 1 in the F2 generation represent?

c. State Mendel's Law of Dominance.





No comments:

Post a Comment

Practice Papers

SSC/SC1/ Gr10/ Chemical Reaction

SSC Board Science 1   Grade 10 – Chemical Reactions and Equations   Section A: Fill in the Blanks (5 × 1 = 5 marks) 1. The process in which ...