Represented below is the inheritance pattern of a certain type of traits in humans. Which one of the following conditions could be an example of this pattern?
Phenylketonuria
Sickle cell anaemia
Haemophilia
Haemophilia
Where do certain symbiotic microorganisms normally occur in human body?
Caecum
Oral lining and tongue surface
Vermiform appendix and rectum
Vermiform appendix and rectum
Identify the human developmental stage shown below as well as the related right palce of its occurrence in a normal pregnant woman, and select the right option for the two together.
Developmental Stage | Site of Occurrence |
Late morula | Middle part of fallopian tube |
Developmental Stage | Site of Occurrence |
Blastula | End part of fallopian tube |
Developmental Stage | Site of Occurrence |
Blastocyst | Uterine wall |
Developmental Stage | Site of Occurrence |
Blastocyst | Uterine wall |
The secretory phase in the human menstrual cycle in also called
luteal phase and lasts for about 6 days
follicular phase lasting for about 6 days
luteral phase and lasts for about 13 days
luteral phase and lasts for about 13 days
Select the correct statements about biodiversity
The desert areas of Rajasthan and Gujarat have a very high level of desert animal species as well as numerous rare animals
Large scale planting of Bt cotton has no adverse effect on biodiversity
Western Ghats have a very high degree of species richness and endemism
Western Ghats have a very high degree of species richness and endemism
The domestic sewage in large cities
has a high BOD as it contains both aerobic and anaerobic bacteria
is processed by aerobic and then anaerobic bacteria in the secondary treatment is Sewage Treatment Plants (STPs)
When treated in STPs does not really require the aeration step as the sewage contains adequate adequate oxygen
When treated in STPs does not really require the aeration step as the sewage contains adequate adequate oxygen
Which one of the following sets of items in the options 1 - 4 are correctly categorised with one exception in it?
Items | Category | Exception |
UAA, UAG, UGA | Stop codons | UAG |
Items | Category | Exception |
Kangaroo, Koala, Wombat | Australian marsupials | Wombat |
Items | Category | Exception |
Plasmodium, Cuscuta, Trypanosoma | Protozoan parasites | Cuscuta |
Items | Category | Exception |
Plasmodium, Cuscuta, Trypanosoma | Protozoan parasites | Cuscuta |
Identify the likely organisms (a), (b) (c) and (d) in the food web shown below
(I) | (II) | (III) | (IV) |
deer | rabbit | frog | rat |
(I) | (II) | (III) | (IV) |
dog | squirrel | bat | deer |
(I) | (II) | (III) | (IV) |
rat | dog | tortoise | crow |
(I) | (II) | (III) | (IV) |
rat | dog | tortoise | crow |
A.
(I) | (II) | (III) | (IV) |
deer | rabbit | frog | rat |
Producers utilize the radiant energy of sun which is transformed to chemical form during photosynthesis. Thus, green plants occupy the first trophic level. The herbivores constitue the secondary trophic level and the carnivores the third trophic level. Deer is herbivores, rabbit and rat are also herbivores but frog eats the grasshoppers.
Consider the following four statements (a–d) and select the option which includes all the correct ones only:
Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc.
Body weight-wise the microorganism Methylophilus methylotrophus may be able to produce several times more proteins than the cows per day.
Common button mushrooms are a very rich source of vitamin C.
A rice variety has been developed which is very rich in calcium.
Statements (III), (IV)
Statements (I), (III) and (IV)
Statements (II), (III) and (IV)
Statements (II), (III) and (IV)
Identify the molecules (a) and (b) shown below and select the right option giving their source and use
Molecule | Source | Use |
Coaine | Erythroxylum coca | Accelerates the transport of dopamine |
Molecule | Source | Use |
Heroin | Cannabis sativa | Depressant and slows down body functions |
Molecule | Source | Use |
Cannabinoid | Atropa belladona | Produces hallucinations |
Molecule | Source | Use |
Cannabinoid | Atropa belladona | Produces hallucinations |