31. Which of the following species of Plasmodium don’t cause Malaria?
[A] Plasmodium piper
[B] Plasmodium vivax
[C] Plasmodium falciparum
[D] Plasmodium malaria
Show Answer
Correct Answer: A [Plasmodium piper]
Notes:
Plasmodium vivax, falciparum, and malariae species of Plasmodium cause Malaria. Whereas Plasmodium piper species of Plasmodium don’t cause Malaria.
32. In most species, mitochondrial DNA is passed down from which of the following?
[A] DNA
[B] Mother and Father
[C] Father
[D] Mother
Show Answer
Correct Answer: D [Mother]
Notes:
In most of the species, mitochondrial DNA is passed down from Mother.
33. 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.
34. The method that silencing specific mRNA due to the binding of complementary dsRNA is called?
[A] Electrophoresis
[B] RNAi
[C] rDNA technology
[D] DNAi
Show Answer
Correct Answer: B [RNAi]
Notes:
The method that silencing specific mRNA due to the binding of complementary dsRNA is called RNAi.
35. Which of the following is known as animal starch?
[A] Glycogen
[B] Cellulose
[C] Chitin
[D] Glucose
Show Answer
Correct Answer: A [Glycogen]
Notes:
Glycogen, the principal storage form of glucose in animal cells, sometimes called “animal starch” for its resemblance with starch found in plants. It is stored in liver and muscle cells and can be converted to glucose if needed. In the liver this conversion is regulated by the hormone glucagon.
36. In Angiosperms, plant embryos in seed have structures called ____:
[A] Buds
[B] Spore
[C] Sprout
[D] Cotyledon
Show Answer
Correct Answer: D [Cotyledon]
Notes:
The word angiosperm means seed. The seeds develop inside an organ which is modified to become a fruit. These are also called flowering plants. Plant embryos in seeds have structures called cotyledons. Cotyledons are called ‘seed leaves’ because in many instances they emerge and become green when the seed germinates.
37. The development of a fruit without fertilization is called ____:
[A] Apomixis
[B] Parthenocarpy
[C] Hybridogenesis
[D] Gametogamy
Show Answer
Correct Answer: B [Parthenocarpy]
Notes:
Parthenocarpy is the development of fruit without fertilization of seeds. In nature, parthenocarpy occurs as a mutation. Another biological mechanism stenospermacarpy also produces seedless fruits, but here the seeds are aborted while they are still small. In nature, parthenocarpy occurs as a mutation. Some plants require pollination or stimulation for parthenocarpy. This is known as stimulative parthenocarpy.
38. DPT vaccine is categorized as which of the following?
[A] Anti viral vaccine
[B] Anti protozoan vaccine
[C] Anti ricket-sial vaccine
[D] A combined vaccine
Show Answer
Correct Answer: D [A combined vaccine]
Notes:
DPT refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus. The vaccine components include diphtheria and tetanus toxoids and killed whole cells of the organism that cause pertussis (wP).
39. Green manure is obtained from ___:
[A] Fresh animal excreta
[B] Decomposing green legume plants
[C] Domestic vegetable waste
[D] Oil seed husk cakes
Show Answer
Correct Answer: B [Decomposing green legume plants]
Notes:
Green undecomposed material used as manure is called green manure. It is obtained in two ways: by growing green manure crops or by collecting green leaf (along with twigs) from plants grown in wastelands, field bunds and forest.
40. There is no vaccine for which of the following hepatitis viruses?
[A] Hepatitis A
[B] Hepatitis B
[C] Hepatitis C
[D] Hepatitis D
Show Answer
Correct Answer: C [Hepatitis C]
Notes:
Hepatitis A vaccine (Havrix, Vaqta) is used to prevent hepatitis A, a type of liver disease that is caused by the hepatitis A virus. Hepatitis B vaccines (Recombivax HB, Engerix-B) are used to prevent hepatitis B infection, a serious liver infection caused by the hepatitis B virus (HBV). Hepatitis B is easily spread through contact with blood or other fluids of an infected person. Hepatitis D is a liver disease in both acute and chronic forms caused by the hepatitis D virus (HDV). A vaccine against hepatitis B is the only method to prevent HDV infection. No vaccine is currently available for Hepatitis C virus (HCV).
