31. A dark brown, earth-like substance containing balanced macro and micronutrients:
[A] Vermicompost
[B] Azotobacter
[C] Tricho-Card
[D] Bio Compost
Show Answer
Correct Answer: D [Bio Compost]
Notes:
A dark brown, earth-like substance containing balanced macro and micronutrients is called Bio Compost.
32. The bioethanol is subjected to rectification to remove?
[A] Sugar
[B] Enzymes
[C] Yeast
[D] Impurities
Show Answer
Correct Answer: D [Impurities]
Notes:
The bioethanol is subjected to rectification to Remove Impurities. Alcohol is made by microbial fermentation, mostly from carbohydrates produced in sugar- or starchy plants such as corn, sugarcane, sweet sorghum, or lignocellulosic biomass known as bioethanol.
33. Biotechnology has been defined by which of the following?
[A] The European Federation of Biotechnology (EFB)
[B] National Center for Biotechnology Information (NCBI)
[C] National Institutes of Health (NIH)
[D] National Centre for Cell Science (NCCS)
Show Answer
Correct Answer: A [The European Federation of Biotechnology (EFB)]
Notes:
Biotechnology has been defined by The European Federation of Biotechnology (EFB).
34. GM rice is enriched with which of the following vitamin?
[A] K
[B] E
[C] A
[D] D
Show Answer
Correct Answer: C [A]
Notes:
GM rice is enriched with vitamins A. Genetically modified rice are strains of rice that have been genetically modified.
35. Which of the following enzymes helps in the binding of DNA?
[A] Lyase
[B] Ligase
[C] Helicase
[D] Lipase
Show Answer
Correct Answer: B [Ligase]
Notes:
Ligase enzymes help in the binding of DNA. An enzyme that can catalyze the joining (bonding) of two large molecules by forming a new chemical bond is called a ligase.
36. Chromosome designation of Turner sydrome is ____:
[A] 44A+XO
[B] 44A+XXX
[C] 44A+XXY
[D] 44A+XYY
Show Answer
Correct Answer: A [44A+XO]
Notes:
Turner syndrome is a rare chromosomal disorder characterized by partial or complete loss (monosomy) of one of the X chromosomes that affects females. Individuals with Turner syndrome have only 45 chromosomes, including just a single X chromosome. This monosomic has a chromosome complement of 44 autosomes and one X chromosome (44+XO). The abnormal condition probably originates from exceptional egg or sperm with no X chromosome.
37. Which one of the following is commonly known as Pond Silk?
[A] Yeast
[B] Rhizopus
[C] Ulothrix
[D] Spirogyra
Show Answer
Correct Answer: D [Spirogyra]
Notes:
Pond silk is the common name of Spirogyra (algae) because it is very slimy in shape. It is also known as pond silk, water silk, pond scum or mermaid’s trees because of its bright green silky appearance. Its filaments shine like silk due to the presence of mucilage and spiral shaped chloroplast.
38. The type of fruit obtained from a multicarpillary, apocarpous gynoecium is ____:
[A] Composite
[B] Multiple
[C] Aggregate
[D] Simple
Show Answer
Correct Answer: C [Aggregate]
Notes:
Aggregate fruits are the group of fruitlets which develop from the multicarpellary, apocarpous ovary. Flowers with apocarpous multiple gynoecium are apt to give rise to a number of fruits as there are a number of free ovaries, each capable of giving rise to one fruit. Berries are good example of such fruits.
39. What is a Sponge?
[A] A fungus
[B] A fossil
[C] A plant
[D] An animal
Show Answer
Correct Answer: D [An animal]
Notes:
Sponges are sedantric, diploblastic, asymmetrical animals, once considered plants. They are characterized by the water canal system with pores called the ostia and osculum. They are also known to posses the multipurpose cells called chanocytes.
40. Which of the following protein is found in hair?
[A] Actin
[B] Histone
[C] Keratin
[D] Elastin
Show Answer
Correct Answer: C [Keratin]
Notes:
Keratin is a family of fibrous structural proteins that is the key structural material making up hair, horns, claws, hooves, and the outer layer of human skin. Keratin is also the protein that protects epithelial cells from damage or stress. Some keratins have also been found to regulate key cellular activities, such as cell growth and protein synthesis.
