4

Heredity and Evolution

10th Class - CBSE - Biology - 1955 Questions - 0 Concepts

Important Questions

Q1 Single Correct Hard
Flowering plants seem to have originated from
  • A. Tracheophyte ancestors
  • B. Psilophytes
  • C. Chlorophyte ancestors
  • D. Rhynia like plants

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer

Q2 Single Correct Hard
Match the following and select the correct match.
List IList II
AMendel performed .................. between plants having alternate traits of a character, e.g., tall and dwarf, coloured flower and white flower.1Second filial
BFor this he removed .................. (emasculation) from 50% of the flowers of each type and used them as female parents.2Reciprocal crosses
C.................. from the other flower were collected and dusted over the stigma of these flowers. The pollinated flowers were covered with paper bags and allowed to form pods with seeds.3Monohybrid cross
DThe cross involving two traits of a single character is called .....................  4First filial generation
ECross involving traits of two characters is known as .................. 5Anthers
FThe seeds of the cross were collected and sown next year. The plants were hybrid in nature. They constituted the ................ or $$F_1$$ generation.6Pollen
GSelf Breeding for $$F_2$$ and $$F_3$$ generations. Plants of $$F_1$$ generation were allowed to perform ................... or self-fertilization.7Third filial generation
HMendel collected seeds of the new generations. Plants raised from them were called ...................8Dihybrid cross
Ior $$F_2$$ ..............9Self-pollination
JFurther self-pollination of $$F_2$$ plants produced $$F_3$$10Generation
  • A. A- 2, B- 5, C- 6, D- 3, E- 8, F- 9, G- 4, H- 1, I- 10, J- 7
  • B. A- 2, B- 5, C- 6, D- 8, E- 3, F- 4, G- 9, H- 1, I- 10, J- 7
  • C. A- 2, B- 6, C- 5, D- 3, E- 8, F- 4, G- 9, H- 1, I- 10, J- 7
  • D. A- 2, B- 5, C- 6, D- 3, E- 8, F- 4, G- 9, H- 1, I- 10, J- 7

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q3 Single Correct Hard
Prototherians have evolved from
  • A. Birds
  • B. Amphibians
  • C. Eutherians
  • D. Reptiles

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q4 Single Correct Hard
Which of the following statements is/are correct?
  • A. Mendel's experiments gave us the mechanism for the inheritance of traits from one generation to the next.
  • B. Mendel's findings remained unknown until these were rediscovered by Hugo de Vries in 1900.
  • C. Natural selection is based on the isolation of natural populations and selective breeding of organisms.
  • D. Both A and B.

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q5 Single Correct Hard
Saplings of oaks of Northern USA possess 
  • A. Deciduous leaves
  • B. Highly dissected leaves
  • C. Axillary thorns
  • D. Evergreen leaves

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q6 Subjective Hard
Carry out a monohybrid cross between two individuals, one having black coloured hair and the other having brown coloured hair and also determine the genotype of the parent as well as children if three of their children are having black hair and one is having brown hair?

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer

Q7 Subjective Hard
Write the type of sex determination mechanism for the following. Give an example of each type.
 (i) Female XX and male XO (ii) Female ZW and male ZZ.

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q8 Subjective Hard
Three Mark Questions :
Mendel published his work on inheritance of characters in 1865, but it remained unrecognised till 1900. Give three reasons for the delay in accepting his work.

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q9 Single Correct Hard
Choose the correct answer from the alternatives given.
Match column 1 with column II and select the correct option from the given codes.
Column IColumn II
A.Gregor J. Mendel(i)Chromosomal theory of inheritance
B.Sutton and Boveri(ii)Laws of inheritance
C.Henking(iii)Drosophila
D.Morgan(iv)Discovered X-body
  • A. A-(v), B-(i), C-(ii), D-(iii)
  • B. A-(iv), B-(ii), C-(i), D-(iii)
  • C. A-(ii), B-(iii), C-(iv), D-(i)
  • D. A-(ii), B- (i), C-(iv), D-(iii)

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Q10 Single Correct Hard
In Drosophila, the allele for a normal grey body colour G is dominant to ebony body g. The following table summarises the results of several crosses.


S. No.CrossResult
1.strain 1*ggall wild-type
2.strain 2*gg1 wild type: 1 ebony
3.strain 3*ggall ebony
4.strain 4*Gg3 wild type:1 ebony

Which strain both have the genotype Gg?
  • A. 1 and 3
  • B. 1 and 4
  • C. 2 and 3
  • D. 2 and 4

Asked in: Biology - Heredity and Evolution


1 Verified Answer | Published on 07th 09, 2020

View Answer
Questions 122475
Subjects 10
Chapters 93
Enrolled Students 65
Enroll Now For FREE