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MCQs 1: Sexually reproduces organism contribute to their offspring’s____________________?

All their genes 1/4 of their genes 1/2 of their genes Diploid number of genes
Answer Explanation

MCQs 2: The most recent evolved plant group is ____________________?

Confers Mosses grasses Gymnosperm
Answer Explanation

MCQs 3: If a pure tall plant is crossed with a pure dwarf one, the ratio of tall pure dwarf in the F 2 generation after selling F1 plant will be___________________?

1:1 1:2 2:1 3:1
Answer Explanation

MCQs 4: Polyploidy is most likely to result from ____________________?

Occurrence of crossing over The crossing over between non homologous chromosomes Occurrence of karyokinesis The failure of homologous chromosomes to separate during meiosis
Answer Explanation

MCQs 5: Apheliotropic gene is one which___________________?

Affects more than five characters Affects more than ten characters Affects only one character Affects more than one character
Answer Explanation

MCQs 6: A genetic element which can exist in more than one of the two alternative forms is known as__________________?

Episome Disome Mecrosome Peroxisome
Answer Explanation

MCQs 7: The smallest unit of recombination in the chromosome is called___________________?

Gene Chromosome Citron Recon
Answer Explanation

MCQs 8: The functional unit of mutation is___________________?

Gaston Recon Gene Mouton
Answer Explanation

MCQs 9: The genetic constitution of an orgarusm is denoted by____________________?

Phenotype Genotype Allele Genome
Answer Explanation

MCQs 10: A cross of hybrid with one of its parents is termed as____________________?

Hybridization Backcross Test cross Biohybrid
Answer Explanation

MCQs 11: Reproduction from an unfertilized egg or reproduction without fertilization may be defined as___________________?

Calistoga Chimera Clone Inbreeding
Answer Explanation

MCQs 12: In the F2 generation, genotypic and phenotypic ratios are identical in cases of___________________?

Mendel lan monohybrids Mendelian dihybrids Incomplete dominance None of the above
Answer Explanation

MCQs 13: As a result of linkage and crossingover _____________________?

Chromatids become chromosomes Nuclear division come to close Chromosomes become half in number Exchange of chromosomal material
Answer Explanation

MCQs 14: A dihybrid ratio is____________________?

9:3:3:1 1:1:1:1 3:1 27:9:9:3:3:3:1
Answer Explanation

MCQs 15: The chromosome number of human race is__________________?

48 41 44 46
Answer Explanation

MCQs 16: Mendel studied contrasting characters for his breeding cxperiments with peas which of the following character he did not study_______________?

Pod color Pod shape Plant height Leaf shape
Answer Explanation

MCQs 17: The new crop critical has been evolved by intervener hybridization between________________________?

Wheat & rice Rye & Wheat Wheat & Anglos Rice & maize
Answer Explanation

MCQs 18: The crossing of a yomozygous tall plant and a homozygous dwarf plant would yield plants in the ratio of_________________?

2 tall: 2 dwarf All homozygous dwarf All the heterozygous tall One homozygous tall, one homozygous dwarf, two heterozygous tall
Answer Explanation

MCQs 19: In crop improvement programmed haploids are of great importance because they__________________?

Are useful in studies on meiosis Give homozygous lines following diplodization Grow better under adverse conditions Require only about half the amount of chemical fertilizers compared to diploids
Answer Explanation

MCQs 20: Among the following the test cross is_________________?

TTxTT TTxTt TtxTt Ttxtt
Answer Explanation

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