TLS Online TPP Program

#Question id: 34163


Which of the following represents the correct sequential pathway for aldosterone synthesis from cholesterol, based on the enzyme-catalyzed steps?

#Biochemistry
  1. Cholesterol → Pregnenolone → Progesterone → Corticosterone → Deoxycorticosterone → Aldosterone
  2. Cholesterol → Progesterone → Pregnenolone → Deoxycorticosterone → Corticosterone → Aldosterone
  3. Cholesterol → Pregnenolone → Progesterone → Deoxycorticosterone → Corticosterone → 18-Hydroxycorticosterone → Aldosterone
  4. Cholesterol → Pregnenolone → Deoxycorticosterone → Progesterone → Corticosterone → Aldosterone
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TLS Online TPP Program

#Question id: 40514

#Environmental Science

Which statements correctly describe protobionts?
1. Membrane-like structure
2. Pre-cellular organization
3. Fully functional cells
4. Chemical aggregation

TLS Online TPP Program

#Question id: 40515

#Environmental Science

Match the taxonomist with their contribution

Column IColumn II
A. Linnaeus1. Phylogenetic classification
B. Whittaker2. Binomial nomenclature
C. Hennig3. Five kingdom classification
D. Mayr4. Biological species concept

TLS Online TPP Program

#Question id: 40516

#Environmental Science

Match the taxonomic category with example

Column IColumn II
A. Family1. Felidae
B. Order2. Carnivora
C. Class3. Mammalia
D. Genus4. Panthera

TLS Online TPP Program

#Question id: 40517

#Environmental Science

 Match systematics tools

Column IColumn II
A. Numerical taxonomy1. DNA comparison
B. Cytotaxonomy2. Chromosome analysis
C. Chemotaxonomy3. Metabolite study
D. Molecular taxonomy4. Statistical similarity

TLS Online TPP Program

#Question id: 40518

#Environmental Science

Which statements are true about taxonomic hierarchy?
1.Kingdom is highest rank
2.Genus contains related species
3.Family includes multiple genera
4.Species is broadest rank

TLS Online TPP Program

#Question id: 40519

#Environmental Science

Identify correct statements about species concept:
1.Biological species concept uses reproductive isolation
2.Morphological species concept relies on appearance
3.All species concepts give identical results
4.Species are evolutionary units