০০। "Experiments in Plant Hybridization" a paper of G. Mendal was first published in the year:
ক) 1905
খ) 1787
গ) 1866
ঘ) 1896
০১। "If a gene is represented in an infinitely large random-mating population by adaptively neutral alleles, A and a, in the ration of qA: (1-q)2 aa = 1" is known as:
ক) Stanford-Suneson law
খ) Weibe-Thomas law
গ) Briggs-Harlan law
ঘ) Hard-Weinberg law
০২। 2n - 1 is a:
ক) Monosomic
খ) Transonic
গ) Tetrasomic
ঘ) Alloploid
০৩। 2n denotes:
ক) Number of homozygote produces by selfing a F1
খ) Number of types of gametes produced by F1
গ) Number of types of heterozygote produced by selling F1
ঘ) None of the above
০৪। A cell or an organism having one chromosome pair in addition to the normal somatic compliment of the species is:
ক) Monosomic
খ) Nullisomic
গ) Tetrasomic
ঘ) Trisomic
০৫। A character dermined by many genes and does not show discrete variation is known as:
ক) Qualitative character
খ) Oligogenic character
গ) Quantitative character
ঘ) Multiple-allelic character
০৬। A complex of communities of plants and animals of a region existing under identical climatic conditions is called as:
ক) Biome
খ) Ecosystem
গ) Ecological complex
ঘ) Environment
০৭। A condition in which pollination and fertilization take place in an unopened flower is termed as:
ক) Homogamy
খ) Apogamy
গ) Polygamy
ঘ) Cleistogamy
০৮। A criss-cross inheritance is shown by:
ক) Sex-influenced character
খ) Polygamy
গ) Sex-linked character
ঘ) Sex-quantitative character
০৯। A cybrid is:
ক) A sex hybrid
খ) A hybrid formed by cell fusion
গ) A plant produced by cell culture
ঘ) Synonym to hybrid
১০। A dry, one chambered and one seeded fruit developing from a superior ovary with the hard and woody pericarp is:
ক) Achene
খ) Caryopsis
গ) Composite fruit
ঘ) None of the above
১১। A fruit, which develops from an inflorescence, is known as:
ক) Simple fruit
খ) Aggregate fruit
গ) Composite fruit
ঘ) None of these
১২। A fruit, which is collection of simple fruits developing from the apocarpous pistil of a flower, is known as:
ক) Multiple fruit
খ) Aggregate fruit
গ) Complex fruit
ঘ) Simple fruit
১৩। A generative nucleus in the male gametophyte divides _____ to form two male gametes:
ক) Mitotically
খ) Meiotically
গ) Mitotically and Meiotically
ঘ) None of these
১৪। A head or capitulum's is characteristic of:
ক) Compositeae
খ) Umbelliferae
গ) Solanaceae
ঘ) Gramineae
১৫। A homozygous line developed by self-fertilization in a cross-pollinated crop is termed as:
ক) Pureline
খ) Inbred
গ) Clone
ঘ) Mutant
১৬। A hybrid is always:
ক) Heterozygous
খ) Homozygous
গ) Both of the above
ঘ) Often homozygous
১৭। A large unit of natural vegetation in an area under identical condition (climatic) is called:
ক) Plant formation
খ) Association
গ) Community
ঘ) Climax
১৮। A maintainer line is:
ক) Male fertile and can restore fertility
খ) Male sterile but can restore fertility
গ) Male sterile but cannot restore fertility
ঘ) Male fertile but cannot restore fertility
১৯। A male child would be born to parents if:
ক) The father is healthier than the mother
খ) The mother eats well during pregnancy
গ) The genetic composition of the child includes XY combination of chromosomes
ঘ) The genetic composition of the child includes XX combination of chromosomes