Reproductive Health - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of contraceptive methods, ART, and STIs.
Molecular Basis of Inheritance - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of DNA replication, transcription, and translation.
Created by Titas Mallick
Biology Teacher • M.Sc. Botany • B.Ed. • CTET (CBSE) • CISCE Examiner
Practice questions testing deep understanding of genetic disorders, linkage, and Mendelian deviations.
Q1. Hemophilia is an X-linked recessive genetic disorder. A perfectly healthy woman, whose father was a hemophiliac, marries a perfectly healthy man. Determine the probability that their son will have hemophilia. Provide the genetic reasoning.
Q2. Morgan's experiments with Drosophila (fruit flies) revealed the concept of "Linkage." Explain how genetic linkage directly contradicts Mendel's Law of Independent Assortment.
Q3. Assertion (A): Down's Syndrome is caused by the presence of an extra chromosome 21 (Trisomy 21). Reason (R): This occurs due to "non-disjunction" during meiosis, where homologous chromosomes fail to separate properly, resulting in a gamete with 24 chromosomes instead of the normal 23.
/Class-12/Competency-Based-Questions/Unit_2_Chapter_1_Principles_of_Inheritance_and_Variation_CBQ.mdxReproductive Health - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of contraceptive methods, ART, and STIs.
Molecular Basis of Inheritance - Competency Based & Assertion-Reasoning Questions
Practice questions testing deep understanding of DNA replication, transcription, and translation.