OnlineCBT Logo OnlineCBT
⚲
हिन्दी
OnlineCBT Logo OnlineCBT
⚲

Biology · PRINCIPLES OF INHERITANCE AND VARIATION

हिन्दी

Sahiwal cows of Punjab were developed from ancestral wild cows through which of the following processes?

  1. Genetic engineering and recombinant DNA technology
  2. Artificial selection and domestication
  3. Mutation breeding and chemical treatment
  4. Micropropagation and tissue culture

Correct answer · Option 2

Artificial selection and domestication

Explanation

Humans knew as early as 8000-1000 B.C. that variation was present in sexual reproduction and exploited it through artificial selection and domestication to produce breeds like Sahiwal cows in Punjab.

Related questions

A cross between a true-breeding tall pea plant (\( TT \)) and a true-breeding dwarf pea plant (\( tt \)) yielded \( F_1 \) plants, which were then self-pollinated to produce 1200 \( F_2 \) plants. How many of these \( F_2 \) plants are expected to be heterozygous tall?→In pea seeds, starch synthesis is controlled by a single gene with alleles \( B \) and \( b \). Considering starch grain size as the phenotype, the alleles show (i)_________, whereas considering seed shape (round vs. wrinkled) as the phenotype, allele \( B \) shows (ii)_________.→Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).\n Assertion (A): In a monohybrid cross of Antirrhinum majus (snapdragon) between true-breeding red-flowered and white-flowered plants, the phenotypic and genotypic ratios in the \( F_2 \) generation are identical (1:2:1).\n Reason (R): The allele for red flower colour is completely dominant over the allele for white flower colour, allowing heterozygous individuals to express a blended phenotype.\nIn the light of the above statements, choose the correct answer from the options given below:→Mendel selected 14 true-breeding pea plant varieties as pairs. Which of the following pairs correctly matches the character with its dominant and recessive traits?→
OnlineCBT

Our mission is "To educate students and help them excel in competitive exam preparation to the best of their potential. To impart good values in students and develop their overall exam readiness."

Useful Link
Important Pages
Courses & Practice
Contact
Address

Plot No 10, Dholigumti, Panditpura Road, Bandikui, Dausa(Raj) 303313

Contact

+91 7877547686

 E-mail

onlinecbtportal@gmail.com

 Helpline Number

+91 7877547686
Share
Click To Download
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

Terms of Use | Privacy Policy | Cookie Policy | Disclaimer | Editorial Policy | Fact Check | Corrections | DMCA | Ad Choices

Copyright © 2026 - OnlineCBT.in. All Rights Reserved.

WhatsApp Chat