Biology

Which of the following causes plague?

Which of the following causes plague? Options (a) Yersinia pestis (b) Trichinella spiralis (c) Leishmania donovani (d) Salmonella typhimurium Correct…

Photophosphorylation was discovered by

Photophosphorylation was discovered by Options (a) Arnon (b) Hill (c) Ruben and Kamen (d) Calvin Correct Answer: ArnonExplanation:No explanation available.…

To get haploid callus, one can culture

To get haploid callus, one can culture Options (a) pollen grain (b) embryos (c) leaf tissue (d) stigma Correct Answer:…

Muscles which are immune to fatigue are

Muscles which are immune to fatigue are Options (a) unstriped muscle (b) cardiac muscle (c) jaw muscle (d) skeletal muscle…

Sewage pollution is not responsible for

Sewage pollution is not responsible for Options (a) increase in oxygen concentration (b) decrease in oxygen concentration (c) reduction in…

Respiratory quotient is less than one for

Respiratory quotient is less than one for Options (a) banana (b) potato (c) citrus fruits (d) castor seeds Correct Answer:…

Acquiring an oxygen debt is evidence that

Acquiring an oxygen debt is evidence that Options (a) O₂ cannot be stored in tissues (b) aerobic respiration is more…

Number of chromosome in Down’s syndrome is

Number of chromosome in Down's syndrome is Options (a) 46 (b) 47 (c) 48 (d) 49 Correct Answer: 47Explanation:No explanation…

First organism to evolve on the earth were

First organism to evolve on the earth were Options (a) saprotrophs (b) photoautotrophs (c) chemoautotrophs (d) chemoheterotrophs Correct Answer: chemoheterotrophsExplanation:No…

Drones in a colony of honey bee originate by

Drones in a colony of honey bee originate by Options (a) thelotoky (b) cyclic parthenogenesis (c) arrhenotoky (d) diploid parthenogenesis…