NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Botany MCQs (Practice_Test 82 of 104)
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- Changes in transcription after linking the cloned DNA of the putative promoter/enhancer region to cloned DNA of the coding region of an unrelated gene, can be measured rapidly with a high degree of sensitivity using
- Transgenic technology
- Reporter gene technology
- CDNA technology
- Gene transfer technology
- Internal phosphodiester bond in a nucleic acid molecule is hydrolyzed by
- Exonuclease
- End nuclease
- DNA polymerase
- Deoxyribonucleic
- The proof-reading during replication of a DNA molecule to eliminate a wrong in the elongating strand is brought about by
- The 3՚-exonuclease activity of DNA polymerase I and III
- The 3-endonuclease activity of DNA polymerase I and III
- The 5 − 3՚ exonuclease activity of DNA polymerase II
- RNA polymerase
- The process, which involves the recombination of genetic material between bacteria and virus as result of the transfer of extra cellular pieces of DNA that are taken up by a living bacteria, is known as
- Sexduction
- Transformation
- Conjugation
- Transduction
- Which one of the following statements is correct? Crossing over with the inversion loop of
- Heterozygote per centric inversion produces duplication and deficiency
- Heterozygote pen centric inversion produces digenetic bridge and eccentric fragments
- Heterozygote Para centric inversion produces all the normal gametes
- Heterozygote Para centric inversion produces dysenteric bridge and acerbic fragments
- Which of the following are required for the development of hybrid rice seed production?
- CMS line
- Maintainer
- Restorer
- Inbred line
- Select the correct answer using the codes given below:
- 1,2 and 3
- 2 and 4
- 1 and 3
- 1,2, 3 and 4
- Besides the nucleus, which of the following cell organelles play an important role in hybrid vigor?
- Lysosome
- Mitochondria
- Endoplasmic reticulum
- Plastid
- Select the correct answer using the codes given below:
- l and 2
- l and 4
- 2 and 3
- 2 and 4
- Apoptosis is
- Necrotic death of a cell
- Programmed death of a cell
- Shrinking of apoplast and aging process
- A process of shedding leaves
- During senescence of a plant
- The plant displays sequential senescence of the leave
- Metabolites like carbohydrates, proteins etc. Are transported from young leaves to the aging leaves
- Metabolites like carbohydrates, proteins etc. Are trans. Ported out of the aging leaves to the young leaves
- Secondary plant products accumulate in the tissues are organs during aging
- Which one of the following is a causal agent of wart disease of potato?
- Synchytrium and endobioticum
- Plasmodiophora brassicae
- Spongospora subterranea
- Pseudomonas solanacearum
- Citrus canker is caused by
- Alter aria citric
- Xanthamonas citric
- Diaporthe citric
- Phytophthora citrophthroa
- Which one of the following fungi has been found useful in the biological control of plant diseases?
- Penicillium notatum
- Phytophthora parasitica
- Trichoderma viride
- Mucor mucedo
- Match List I with List II and select the correct answer using the codes given below the fists:
Table Supporting: NET, IAS, State-SET (KSET, WBSET, MPSET, Etc.) , GATE, CUET, Olympiads Etc. : Botany MCQs (Practice_Test 82 of 104) List-I List-II - Tectona
- Eucalyptus
- Truiploid
- Cyanphyceae
- Endosperm culture
- Biofertilizer
- Oil
- Timber
- A
- B
- C
- D
- 4
- 3
- 2
- 1
- 2
- 3
- 1
- 4
- 3
- 2
- 1
- 4
- 4
- 3
- 1
- 2
- The chemical substance Toxol is said to have curative blue for malignant tumor. It is obtained from the
- Bark of the stem of Taxus sp.
- Root of Taxus sp.
- Shoots of Taxodium sp.
- Roots and fruits of Taxodium sp.
- Henna is obtained from the leaves of
- Lawsonia
- Indigofera
- Haematoxylon
- Pterocaipus