Principles of Inheritance and Variation — practice questions
60 curated practice questions from Principles of Inheritance and Variation (Biology NEET, NTA Exams) — 23 easy, 14 medium, 23 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A) …
- Given below is a pedigree chart of a family with five children. It shows the inheritance of attached ear lobes as…
- Which of the following is the example of sex-linked disease?
- From the statements given below choose the correct statement(s): I. Chromosomes and genes both occur in pairs in…
- Given below are two statements: Statement I: A true-breeding line is one that, when self-pollinated, shows stable trait…
- From the statements given below choose the correct statement(s) regarding sex-determination systems: I. In XO type…
- Given below are two statements: Statement I : 14 pure line varieties of Pea were selected by Mendel for his…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT - 1…
- Which of the following most appropriately describe haemophilia?
- Experimental verification of the chromosomal theory of inheritance was done by
- Given below are two statements: Statement I : Mendel's 3 rd law was formulated on the basis of Dihybrid cross involving…
- ABO blood type is determined by:
- Which Mendel's law would not have been formulated if factors were present on same chromosome
- A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of…
- The correct sequence of gamete formation by an F 1 plant (RrYy) during meiosis, leading to the principle of independent…
- A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are…
- Which one of the following cannot be explained on the basis of Mendel's law of dominance?
- Find the CORRECT statements: In honey bees, males develop parthenogenetically from unfertilized eggs and are haploid…
- If disease is transferred from phenotypically normal, but gene carrying female to male progeny, such inheritance is…
- Mendel's postulate that, factor controlling any character is discrete and independent was based on
- 1 : 2 : 1 phenotypic and genotypic ratio is found in:
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT - 1…
- A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F 1 plant were…
- 50 pea plants are dwarf in a population of 200, what will be the frequency of dominant allele?
- The recessive genes located on X-chromosome in human beings are always:
- Mechanism of sex determination in human is just opposite to that found in
- Key features of the Chromosomal Theory of Inheritance include: I. It was proposed by Mendel based on his pea plant…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT - 1…
- Genes R and Y follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds…
- Which of the following statements regarding sickle cell Anaemia is/are true
- Which type of sex determination is found in grasshopper?
- Which modification of Mendelian idea is depicted by a cross in which the F 1 generation resembles both the parents?
- A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of…
- Distance between genes on a chromosome can be mapped by using
- If father is haemophilic and mother is carrier then the chances of their son being haemophilic is:
- Person with genotype I A I B has blood group AB. This is due to
- Drosophila flies with XXY genotype are females, but human beings with such genotype are abnormal males. It shows that:
- Find the CORRECT statements: A dihybrid cross involves parents differing in two pairs of contrasting traits. The…
- From the statements given below choose the correct statement(s): I. In incomplete dominance, the F 1 phenotype is a…
- Genes exhibiting multiple effects are known as:
- Which of the following is best suited for codominance, if:
- If in a taxon of insects, some have 12 chromosomes while others have 13 chromosome, then are
- Which one from those given below is the period for Mendel's hybridization experiments?
- Male to Male transmission cannot occur in Autosomal dominant inheritance Autosomal recessive X linked dominant…
- ABO blood group in humans is controlled by the gene I. It has three alleles, i.e. I A , I B and I O . Since there are…
- Parents of blood group 'O' will have offspring of:
- What is true about X linked recessive inheritance? Both males and females are affected equally Father cannot directly…
- Given below are two statements: Statement I : According to Chromosomal Theory of Inheritance, the behaviour of…
- The term 'allelomorphic' implies:
- In human beings, 45 chromosomes/single X/XO abnormality causes:
- All these traits except one, was the reason why Mendel chose pea plant for his hybridisation experiment
- Find the CORRECT statements: Mendel's monohybrid cross ratios relied on random segregation of alleles during gamete…
- Given below is a pedigree chart showing the inheritance of a certain sex-linked trait in humans. Generation 1…
- Find the INCORRECT statements: Mendel's experiments used large sample sizes for statistically reliable results. In…
- In a given plant, red color (R) of fruit is dominant over white fruit (r) and tallness (T) is dominant over dwarfness…
- Find the CORRECT statements: Sex determination in birds involves female heterogamety (ZW females). Honey bee males…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Husband has blood group A and wife has blood group B. What are the possible blood group of their children?
- Given below are two statements: Statement I : In incomplete dominance in Snapdragon, the genotype ratio in F 2 is same…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…