Question:
Name the mechanism of evolution that must have operated so that population-two evolved from population-one.
Name the mechanism of evolution that must have operated so that population-two evolved from population-one.
Show Hint
Natural selection drives evolutionary changes by favoring advantageous traits in a given environment.
Updated On: Jan 13, 2026
Hide Solution
Verified By Collegedunia
Solution and Explanation
The mechanism is Natural Selection. Over time, brown snakes, being better camouflaged in the desert, had a survival advantage over grey snakes.
Was this answer helpful?
0
0
Top Questions on Genetic Disorders
- A woman carrier for haemophilia marries a normal man. Predict the possible genotypes and phenotypes of the offspring using a Punnett square. Also state percentages.
- PSEB XII - 2025
- Biology
- Genetic Disorders
- Match the following: \begin{tabular}{|c|l|l|} \hline List-I (Disorder) & & List-II (Character)
\hline A) & Myasthenia gravis & IV) Auto-immune disorder
B) & Muscular dystrophy & III) Progressive muscle degeneration
C) & Gout & I) Urate crystal deposits in joints
D) & Osteoporosis & II) Low bone density, fractures
\hline \end{tabular}- AP EAPCET - 2025
- Zoology
- Genetic Disorders
- Match List-I with List-II:
List-I List-II (A) Thalassemia (I) 47, XXY (B) Klinefelter’s syndrome (II) Sex-linked recessive disorder (C) Turner’s syndrome (III) 45, XO (D) Colour blindness (IV) Autosomal recessive disease - CUET (UG) - 2024
- Biology
- Genetic Disorders
- Of the following statements, which is/are correct?
(A) During incomplete dominance, the modified allele is the dominant allele
(B) In polygenic inheritance, the effect of each allele is additive
(C) A gene is called pleiotropic when it exhibits multiple phenotypic expressions
(D) Mutation means alteration of DNA sequence which ensures change only in the phenotype of an organism
Choose the correct answer from the options given below:- CUET (UG) - 2024
- Biology
- Genetic Disorders
- The gene HBB for β-thalassemia is present on which chromosome?
- CUET (UG) - 2024
- Biology
- Genetic Disorders
View More Questions
Questions Asked in CBSE CLASS XII exam
A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?
- CBSE CLASS XII - 2025
- Application of derivatives
- A meeting will be held only if all three members A, B and C are present. The probability that member A does not turn up is 0.10, member B does not turn up is 0.20 and member C does not turn up is 0.05. The probability of the meeting being cancelled is:
- CBSE CLASS XII - 2025
- Probability
- Vishesh, Manik and Amit were partners in the ratio 5 : 4 : 1. Amit retired on 31st March, 2024. Vishesh and Manik decided to share Amit’s share in the ratio 2 : 3. What will be the new profit sharing ratio between Vishesh and Manik?
- CBSE CLASS XII - 2025
- Retirement and Death of a Partner
- The electric field in a region is given by \( \vec{E} = 40x \hat{i} \, \text{N/C}. \) Find the amount of work done in taking a unit positive charge from a point (0, 3m) to the point (5m, 0).
- CBSE CLASS XII - 2025
- Electrostatics
- Consider the Linear Programming Problem, where the objective function \[ Z = x + 4y \] needs to be minimized subject to the following constraints: \[ 2x + y \geq 1000, \] \[ x + 2y \geq 800, \] \[ x \geq 0, \quad y \geq 0. \] Draw a neat graph of the feasible region and find the minimum value of $Z$.
- CBSE CLASS XII - 2025
- Linear Programming Problem
View More Questions