10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 4 - The Attic Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 3 - The Story of Mulan Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 3 - I am Every Woman Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 3 - Empowered Women Navigating The World Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 2 - Zigzag Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 2 - The Grumble Family Important Questions And Answers Study Material - QB365 Set A
Published on: 05/12/2020
10th Standard Science Genetics English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Hydrogen bonds between the nitrogeneous bases make the DNA molecule________
unstable
stable
unbalanced
disturbed
2.
________is a gene mutation
Deletion
Duplication
Translocation
Ploidy
3.
Down's syndrome is a case of___________
Euploidy
Deletion
Translocation
Aneuploidy
4.
______is not a nitrogenous base.
Adenine
Thymine
Leucine
Cytosine
5.
L shaped chromosomes are described as_______
acrocentric
metacentric
submetacentric
telocentric
6.
The haploid condition in a human cell refers to________ chromosomes
44
23
46
22
7.
The loss of one or more chromosome in a ploidy is called_____________.
Tetraploidy
Aneuploidy
Euploidy
Polyploidy
8.
Okasaki fragments are joined together by ___________________.
Helicase
DNA polymerase
RNA primer
DNA ligase
9.
10.
9 : 3 : 3 : 1 ratio is due to
Segregation
Crossing over
Independent assortment
Recessiveness
1.
(b)
stable
2.
(a)
Deletion
3.
(d)
Aneuploidy
4.
(c)
Leucine
5.
(c)
submetacentric
6.
(b)
23
7.
(b)
Aneuploidy
8.
(d)
DNA ligase
9.
(b)
10.
(c)
Independent assortment
10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 2 - The Night the Ghost Got in Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 1 - The Tempest Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 1 - Life Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 1 - His First Flight Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
