NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Botany MCQs (Practice_Test 81 of 104)
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- 6p23 in chromosome nomenclature indicates band number
- 6 in short arm of chromosome 23
- 3 in region 2 of short arm of chromosome 6
- 3 in region 2 of long arm of chromosome 6
- 6 in long arm of chromosome 23
- Crossing over occurs between
- Homologues chromosomes
- Sister chromatids
- Chromatids of homologous chromosomes
- Any to chromosomes
- There are some chemicals which are structurally similar to the base normally found in DNA, and can be incorporated in place of a normal base. One such base analogue is
- 5-bromouracil
- Nitrous acid
- Ethyl methane sulphonate
- Methyl methane sulphonate
- In aqueous solution, the alcidine molecules bind to DNA by inserting themselves between adjacent base pairs. The process is called
- Depreciation
- Substitution
- Muation
- Intercalation
- Match List I (Type of chromosomal aberration) with List II (Designation) and select the correct answer using the codes given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Botany MCQs (Practice_Test 81 of 104) List-I List-II - One chromosome pair extra to the normal complement (2n + 2)
- One chromosome extra to the normal complement (2n + 1)
- One chromosome less than the normal complement (2n − 1)
- One chromosome pair less than the normal complement (2n − 2)
- Trisomic
- Monosomic
- Terasomic
- Nullisomic
- A
- B
- C
- D
- 2
- 4
- 3
- 1
- 1
- 3
- 2
- 4
- 3
- 1
- 4
- 2
- 3
- 1
- 2
- 4
- Match List I (Discovery) with List II (Scientist) and select the correct answer using the codes given below the lists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Botany MCQs (Practice_Test 81 of 104) List-I List-II - Breaking of the genetic code
- Synthesis of an artificial gene
- DNA⟋DNA and DNA⟋RNA hybridization in situ
- Phenomenon of transduction
- Pardue and gall
- Zinder and Lederberg
- Nirenberg and Matthaei
- Khorana
- A
- B
- C
- D
- 1
- 2
- 3
- 4
- 2
- 4
- 3
- 1
- 3
- 4
- 1
- 2
- 1
- 3
- 2
- 4
- When Mendelian principles are operative during the distribution of the alleles into gametes, such a phenomenon is referred to as
- Potential function of an allele
- Co dominance
- Gene interaction
- Continuous variation
- A vector specifically designed for cloning 40 − 49 kb DNA fragment is
- Plasmid
- Phagmid
- Cosmid
- BAC
- In which one of the following plant species can self-pollination never occur either naturally or artificially?
- Zen mays
- Gossypium hirsutum
- Saccharum officinarum
- Carica papaya
- The Hardy-Weinberg law is expressed as (p + q) 2, where p and q stands for
- Frequency of heterozygote
- Frequency of alleles in population
- Gene frequencies in population
- Genotypes frequencies in population
- Mendel had no idea about
- Independent assortment
- Segregation of alleles
- Dominance and recessive ness
- Linkage
- Which one of the following viruses has single stranded DNA and is used extensively as cloning vector in recombinant DNA technology?
- TMV
- lambda phage
- Adenovirus
- M13
- Mobile genetic elements in maize were discovered by
- D. Baltimore
- H. G. Khorana
- N. E. Borlaug
- B. McClintock
- Norine-10 is
- Retrovirus causing enteritis
- Dwarfing gene in wheat
- Wheat variety resistant to black rust
- Fungicide
- The polypeptide chain initiation in a prokaryotic cell, always begins with the amino acid f-methionine because
- No peptide bond formation can take place at the amino end of f-methionine as it is formulated
- F-methionine is available in abundance in the bacterium
- F-methionine can help chain elongation
- Only one t-RNA can attach with fmethionine