NMDCAT Bio Quiz : Variation and Genetics/Inheritance
NMDCAT Biology Quiz: Variation and Genetics
Test your knowledge on the fascinating topics of variation and genetics with our NMDCAT Biology Quiz! This comprehensive quiz is designed to challenge your understanding of key concepts, including inheritance patterns, genetic traits, and the work of Gregor Mendel.
- 35 carefully crafted multiple-choice questions
- Covers essential topics in genetics and inheritance
- Perfect for students preparing for NMDCAT
1-The sex of individuals of next generation always depends on one of the parents, who is: A) Heterogametic C) Isogametic B) Homogametic D) Isomorphic
A
B
C
D
2-Which of the following will be hemophilic? A) XHX h C) XhY B) XHX H D) XHY
A
B
C
D
3- Which trait in humans is an example of multiple alleles? A) Eye colour C) ABO-blood group B) Skin colour D) Rh-Blood group
A
B
C
D
4- The gene for ABO-blood group system in humans is represented by symbol: A) X C) Y B) I D) O
A
B
C
D
5-In men sex-determination depends upon the nature of: A) Heterogametic male C) Heterogametic female B) Homogametic female D) Homogametic male
A
B
C
D
6- Position of an allele within a DNA molecule is: A) Locus C) Amplicon B) Origin D) Filial
A
B
C
D
7- Human skin color is a good example of: A) Sex linked inheritance C) x-linked inheritance B) Polygenic inheritance D) y-linked inheritance
A
B
C
D
8- Number of pairs of autosomes in humans is: A) 23 C) 21 B) 24 D) 22
A
B
C
D
9- ABO blood system is an example of: A) Polygenes C) Multiple alleles B) Multiple genes D) Multiple mutation
A
B
C
D
10- A character determined by three alleles is: A) Human skin color C) Human eye color B) Human blood group D) Human Rh factor
A
B
C
D
11- Pure breeding lines of Pea were taken regarding seed shape – Round and Wrinkled and were crossed with no intermediate between parents. All offsprings were found to be round. These results show: (2017) A) Co-dominance B) Dominant – recessive relationship of alleles C) Incomplete dominance D) Over dominance relationship
A
B
C
D
12-The condition in which heterozygote has a phenotype intermediate between contrasting homozygous parents is called: A) Dominance C) Over dominance B) Co-dominance D) Incomplete dominance
A
B
C
D
13- Locus stands for: A) Position of gene on homologous chromosomes B) Regions of chromosomes C) Position of an allele within a DNA molecule D) Close regions of same chromosomes
A
B
C
D
14-Self-fertilization of F1 dihybrids, following independent assortment of alleles will result in: A) 3/16 Tall, round : 3/16 Dwarf, wrinkled B) 9/16 Tall, wrinkled : 1/16 Dwarf, round C) 9/16 Tall, round : 1/16 Dwarf, round D) 3/16 Tall, wrinkled: 3/16 Dwarf, round
A
B
C
D
15-XO-XX is the sex determing pattern present in: A) Grasshopper C) Butterfly B) Drosophila D) Man
A
B
C
D
16-Different alleles of a gene that are both expressed in a heterozygous condition are called: A) Complete dominance C) Co-dominance B) Incomplete dominance D) Over dominance
A
B
C
D
17-After cross-fertilization of true-breeding tall and dwarf plants, the F1 generation was self-fertilized. The resultant plants have genotype in the ratio (a) 1:2:1 (homozygous tall : heterozygous tall : dwarf) (b) 1:2:1 (heterozygous tall : homozygous tall : dwarf) (c) 3:1 (tall : dwarf) (d) 3:1 (dwarf : tall)
A
B
C
D
18-Which of the following characteristics of pea plants was not used by Mendel in his experiments? (a) seed colour (b) seed shape (c) pod length (d) flower position
A
B
C
D
19- Mendel took _______ contrasting characteristics of pea plants. (a) eight (b) seven (c) six (d) five
A
B
C
D
20-If both genotype and phenotype shows the same ratios of 1:2:1 in the F2 generation, it shows (a) incomplete dominance in monohybrid cross (b) complete dominance in monohybrid cross (c) dihybrid cross (d) co-dominance
A
B
C
D
21-Test cross determines (a) whether two traits are linked or not (b) the genotype of F2 plant (c) whether the two species will breed successfully or not (d) number of alleles in a gene
A
B
C
D
22-Genotype of dominant plant can be determined by (a) pedigree analysis (b) back cross (c) test cross (d) dihybrid cross
A
B
C
D
23-Test cross is a (a) cross between two recessive homozygotes (b) cross between dominant homozygote and heterozygote (c) cross between two F1 hybrids (d) cross between an F1 hybrid and recessive homozygote
A
B
C
D
24-Lack of independent assortment of two genes is due to (a) recombination (b) crossing over (c) linkage (d) repulsion
A
B
C
D
25-The cross where the sources of gametes are reversed is called (a) reciprocal cross (b) reverse cross (c) dihybrid cross (d) test cross
A
B
C
D
26- The genes for the seven characters chosen by Mendel are located on (a) four chromosomes (b) five chromosomes (c) six chromosomes (d) seven chromosomes
A
B
C
D
27-The geometrical device that helps to find out all the possible combinations of male and female gametes is known as A-Bateson Square B-Mendel Square C-Punnett Square D-Mendel’s Cube
A
B
C
D
28- How many phenotypes can occur in the human blood group ABO with alleles IA IB i? A-2 B-3 C-4 D-1
A
B
C
D
29- If a plant with genotype AaBb is self-fertilized, the probability of getting AABB genotype will be (A and B are not linked) A-½ B-¼ C-⅛ D-1/16
A
B
C
D
30- 9:7 ratio in the F2 generation represents A-Incomplete dominance B-Co-dominance C-Epistasis D-Complementary interaction
A
B
C
D
31-Mendel’s findings were rediscovered by A-Correns B-De Vries C-Tschermark D-All
A
B
C
D
32-An exception to Mendel’s law is A-Independent assortment B-Linkage C-Dominance D-Purity of gametes
A
B
C
D
33- Which of the following statements is true regarding the “law of segregation”? A-Law of segregation is the law of purity of genes B-Alleles separate from each other during gametogenesis C-Segregation of factors is due to the segregation of chromosomes during meiosis D-All of the above
A
B
C
D
34-The crossing of F1 to either of the parents is known as: A-Test cross B-Back cross C-F1 cross D-All of the above
A
B
C
D
35-The tendency of an offspring to resemble its parent is known as 1. Variation 2. Heredity 3. Resemblance 4. Inheritance
1
2
3
4
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