Labelled part Q (at the constriction point of a chromosome) shows:
- Telomere
- Sister chromatid
- Gene
- Centromere
Show answer and explanation
Answer: D. Centromere
The centromere is the constricted region joining sister chromatids of a chromosome.
Matric Biology: Inheritance, questions with answers
Practise 26 real Federal Board questions on Inheritance from 2023 to 2026. See the answer and explanation as soon as you answer.
26real questions
8multiple choice
5exam sessions
About Inheritance in Matric Biology
Inheritance is one of the 15 main chapters in our Federal Board Matric Biology question bank (10th class), and about 7% of its real questions come from it. Tayyari Karo has 26 real questions on this chapter from 2023 to 2026; 8 are multiple choice and marked instantly, and the rest are short and long questions with a model answer. By difficulty: 14 medium, 12 easy.
Work through the questions below, then open the explanation for each one. Redo the ones you missed a few days later.
Try 8 real questions
These are real past-paper questions. Think of your answer first, then open the explanation.
If blood group of mother is 'O' and father is AB, then blood group of children will be:
- AB only
- A or B
- O only
- AB or O
Show answer and explanation
Answer: B. A or B
Mother (ii) × Father (IAIB) gives children genotypes IAi or IBi — phenotypes A or B, never AB or O.
What is the phenotypic ratio in F2 generation of a monohybrid cross?
- 1:1
- 2:1
- 3:1
- 9:3:3:1
Show answer and explanation
Answer: C. 3:1
A monohybrid cross (Aa × Aa) gives an F2 phenotypic ratio of 3 dominant : 1 recessive.
Two identical chromosomes of a pair are called:
- Chromatid
- Chromatin
- Condensed chromosome
- Homologous chromosome
Show answer and explanation
Answer: A. Chromatid
The two identical copies of a replicated chromosome, joined at the centromere, are called sister chromatids.
The first phase in which nucleotide sequence is copied in the form of messenger RNA is called:
- Polypeptide
- Translation
- Transcription
- Central dogma
Show answer and explanation
Answer: C. Transcription
Transcription is the process of copying a DNA gene sequence into mRNA.
A particular characteristic is controlled by dominant allele 'A' and recessive allele 'a'. Which cross would give a genotypic ratio 1:2:1 among offsprings?
- AA × aa
- Aa × AA
- Aa × Aa
- Aa × aa
Show answer and explanation
Answer: C. Aa × Aa
Aa × Aa gives 1 AA : 2 Aa : 1 aa — the classic monohybrid genotypic ratio 1:2:1.
A tall pea plant (TT) is crossed with a dwarf plant (tt). Predict the phenotype and genotype of F1 generation.
Show model answer
TT (tall) produces only T gametes; tt (dwarf) produces only t gametes. All offspring receive one T and one t allele.
F1 genotype: Tt (all heterozygous).
F1 phenotype: all Tall (since T, tallness, is dominant over t, dwarfness).
Briefly explain the following terms: (a) Transcription (b) Translation.
Show model answer
(a) Transcription: the process (in the nucleus) by which the DNA sequence of a gene is copied into a complementary messenger RNA (mRNA) strand by the enzyme RNA polymerase.
(b) Translation: the process (at the ribosome, in the cytoplasm) by which the sequence of codons on mRNA is read and used, with the help of tRNA, to assemble a specific sequence of amino acids into a polypeptide (protein).
Sessions with Inheritance questions
| Session | Questions |
|---|---|
| 2026 Annual | 4 |
| 2025 1st Annual | 5 |
| 2025 2nd Annual | 7 |
| 2024 Annual | 6 |
| 2023 Annual | 4 |
Common questions
What does the Inheritance chapter cover on this page?
26 real Federal Board (FBISE) Biology questions on Inheritance from 2023 to 2026, for 10th class. Each one shows the session it came from.
Are the answers official?
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
Is it free?
You can start free with no signup. A small set of papers per subject is free, and Premium unlocks the full question bank.