Biology NEET - Random Flashcards Part 1
This flashcard set offers quick biology revision, covering topics like molecular biology and biotechnology. It includes concise Q&A pairs such as tRNA structure and the year genetically engineered insulin was first made.
CCA base sequence is present in which part of t-RNA?
3’ end
Key Terms
CCA base sequence is present in which part of t-RNA?
3’ end
In which year was genetically engineered insulin first made?
1983
Are natural killer cells granular or agranular?
Granular
Phase of maturation in spermatogenesis involves the
Formation of spermatids from primary spermatocytes
The stop codons are
UAG, UAA, and UGA
Buttress roots arise from
Base of tap root and trunk
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| Term | Definition |
|---|---|
CCA base sequence is present in which part of t-RNA? | 3’ end |
In which year was genetically engineered insulin first made? | 1983 |
Are natural killer cells granular or agranular? | Granular |
Phase of maturation in spermatogenesis involves the | Formation of spermatids from primary spermatocytes |
The stop codons are | UAG, UAA, and UGA |
Buttress roots arise from | Base of tap root and trunk |
What are the functions of membranous labyrinth? | Hearing and balance |
What kind of nucellus is found in polypetalae? | Well-developed |
How many tegments are found in polypetalae? | 2 |
Enzyme TPA (tissue plasminogen activator) is used to | Dissolves blood clots |
Estuary is the | Meeting point of fresh water and sea water |
Which is one of the most poisonous product formed by the burning of chlorine containing waste? | Dioxin |
Placental wolf and tasmanian wolf are examples of | Analogy |
The most important function of K+ ion in plants in | Acts as an enzyme for many physiological processes |
In which cell of C4 plants does the primary fixation of co2 occur? | Mesophyll cell |
Hypogeal germination is found in rice, true or false? | False |
Hypogeal germination is found in onion, true or false? | True |
Petunia has valvate aestivation, true or false? | True |
What type of phyllotaxy is found in Psidium? | Opposite phyllotaxy [Psidium= guava] |
In bryophytes, operculum develops from | Archegonium |
Mala-D is a weekly oral contraceptive pill, true or false? | False. Mala-D is a daily oral contraceptive pill. |
Name a monthly oral contraceptive pill. | Quinestrol |
Which mouth parts are present to the lateral side of the pre-oral cavity of cockroach? | Mandibles and 1st maxilla |
A fruit that dehiscences from apex to base and is derived from monocarpellary ovary with marginal placentation is | Legume |
Water cavity is absent in the stems of which plants? | Dicots |
Water cavity is present in the stems of which plants? | Monocots |
Can fehling solution detect starch? | No |
If testa is removed from water soaked gram seed, the remaining structre is | Fully mature embryo |
Cosmid is a vector for carrying large DNA fragments into host cells. True or false? | True |
Interferon is an enzyme that interferes with DNA replication. True/false? | False |
Study of the effect of global warming on human population comes under | Population ecology or autecology |
Coniferous forests are evergreen forests. True/false? | True |
Tundra has permafrost. True/false? | True |
Acacia trees are found in savannahs. True/false? | True |
Scrubbers and electrostatic precipitators are generally used for removal of | Particulate matter |
What type of circulatory system does Balanogolossuses have? | Closed type |
Balanoglossus have a short trunk. True/false? | False. They have a long trunk. |
Peritubular capillaries of the nephron arise from the | Efferent arterioles |
What are the changes in ciliary muscle and eye lens when nearby objects are viewed? | When nearby objects are viewed, ciliary muscles contract making the lens more convex, thus decreasing its focal length. The lens thickens. |
What are the changes in ciliary muscle and eye lens when distant objects are viewed? | When far objects are viewed, ciliary muscles relax making the lens less convex thus increasing the focal length. |
A trisomic aneuploidy patient having double barr body and problem in menstrual cycle has a genetic problem called | Multi X female (super female) |
(a) It is not a congenital disease. (b) Spreads due to conscious behaviour. (c) Loss of contact inhibition. (d) "Don't die of ignorance" is said in reference to it. (e) Metastasis How many of above statements are not correct regarding AIDS? | Two | c and d |
During evolution, the first living beings were like actinomycetes. True/false? | False. They were like bacteria. |
Milk formation and secretion is the function of a hormone secreted by adenohypophysis. True/false? | true |
Increase in calcium levels of body is the function of a hormone secreted by adenohypophysis. True/false? | False |
What is phenetic classification? What are the other names for phentic classification? | Phenetic classification is the classification of organisms based on morphology. It is also known as taxometrics and numerical taxonomy. |
In which kingdom only heterotrophic, holozoic and saprophytic modes of nutrition found? | Kingdom animalia |
Capsella belongs to which family of plants? | Brassicaceae |
What condition of stamens are found in Capsella? | Tetradynamous |
Tetradynamous condition of stamen is found in family cucurbitaceae. True/false. | False |
In conjoint vascular bundles, xylem surrounds phloem. True/false? | False. In conjoint vascular bundles which the two types of tissues are separated from one another. In collateral vascular bundles, xylem surrounds phloem or vice versa. |
Towards which surface is the xylem located in leaf? | Adaxial epidermis |
Active K+ exchange mechanism for stomatal movement was given by | Levitt |
Polymerase chain reaction requires thermostable DNA polymerase, DNA ligase and primase. True/false? | False. | PCR only requires thermostable DNA polymerase of the three. |
What is the ratio of HNO3 and H2SO4 in acid rain composition? | 3:7 |
A lake near a village suffered heavy mortality of fish within a span of a few days. The possible reasons are (a) Lot of urea and phosphate fertilizers were used in nearby crops. (b) The area was sprayed with DDT by an aircraft. (c) Lake water turned green and stinky. (d) Phytoplankton population declined reducing photosynthesis. | a,c |
What type of vision is found in cockroach? | Apposition or mosaic vision |
What is supination? | Palm facing upwards |
What is pronation? | Palm facing downwards |
Humans can show supination and pronation of palm with the help of | Pivot joint |
At postsynaptic membrane the new potential developed is called action potential. True/false? | False. It is called postsynaptic potential. |
Filling of urinary bladder is associated which autonomous nervous system? | Sympathetic nervous system |
Is increase in salivation a function of sympathetic nervous system? | No |
In Ascaris, genital duct and digestive duct join to form cloaca. True/false? | True |
In earthworm, genital duct and digestive duct join to form cloaca. True/false? | False |
In Taenia, genital duct and digestive duct join to form cloaca. True/false? | False |
In Locust, genital duct and digestive duct join to form cloaca. True/false? | False |
In which part of bacteria are respiratory enzymes found? | Cell membrane |
Phanerogams are seeded plants, true or false? | True |
Which sugar is found in the haemolymph of insects? | Trehalose |
Glutamate dehydrogenase is an important enzyme involved in | Amino acid biosynthesis |
During an experiment, vegetative nucleus was destroyed inside the pollen tube. Immediately afterwards it was observed that the growth of pollen tube was stopped and pollen tube could not reach up to ovule, because | Growth of pollen tube is controlled by vegetative nucleus |
HindIII produces blunt ends. True/false? | False |
EcoRV produces blunt ends. True/false? | True |
Sonneratia trees are found in which forests? | Mangrove forests | [Sonneratia= sunderbans] |
In which biomes are Dipterocarpus (shorea trees) found? | Deciduous forests |
In which biomes are Tendu trees found? | Deciduous forests |
In which biomes are Hopea trees found? | Deciduous forests |
File like rasping organ is absent in which mollusc? | Loligo |
Their function is to move particles or molluscs in specific direction over the epithelium. They are mainly present in inner surfaces of hollow organs. Identify the cells in above mentioned sentence. | Cuboidal ciliated epithelium |
If due to some injury, the chordae tendineae of the tricuspid valve of the human heart become non-functional, what will be the immediate effect? | The flow of blood into the pulmonary artery will be reduced. |
What is the function of duct of bellini? | Conduction of urine |
Aperture of an eye can be changed by | Iris |
Which organism was the common ancestor of birds and crocodile? | Thecodontia |
Agranal chloroplast are found in which cells? | Bundle sheath cells of monocot |
Glucose is absorbed in body through which process? | Active transport, simple diffusion and facilitated diffusion |
Osmosis involves diffusion of water from its more to less concentrated side. True/false. | True |
Intrafascicular cambium is secondary in origin. True/false? | False. It is primary in origin as it originated from embryonic meristems. |
Which is the msot abundant type of configuration of proteins? | Tertiary protein |
Global agreement in specific control strategies to reduce the release of ozone depleting substances was adopted by which protocol? | Montreal protocol |
Global agreement in specific control strategies to reduce the release of greenhouse gases was adopted by which protocol? | Kyoto protocol |
Gills in apple snail are found in which part of the body? | Mantle cavity |
Which type of regeneration is found in planaria? | Morphallaxis |
What is morphallaxis? | In Morphallaxis, any cut part of the organism regenerates into whole organism. |
What is epimorphosis? | In Epimorphosis, the cut or injured part of the organism is repaired. The cut part is regenerated. |
Sphenodon is the scientific name of | Tuatara |
Reptiles have mesonephric kidneys, true or false? | False | Reptiles have metanephric kidneys. |
What is the ploidy of zygospore? | Diploid |
Phycomycetes show all types of syngamy. True/false? | True |
If a recombinant DNA bearing gene for ampicillin is transferred into E.coli cells and the host cells are transferred to ampicillin containing medium, the transformant grows but untransformed host dies. True/False? | True |