Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 56697
TLS Online TPP Program

#Question id: 26926

Which of the following factors are involved to determine the fundamental niches of organisms?

#Unit 10. Ecological Principles
  1. environmental factor
  2. habitat
  3.  Abiotic factors 
  4. Biotic factors
More Questions
TLS Online TPP Program

#Question id: 10175

#Unit 6. System Physiology – Plant

if you take a plant that developed indoors and transfer it outdoors; after some time, if it is the right type of plant what will happened?
TLS Online TPP Program

#Question id: 15192

#Unit 8. Inheritance Biology

Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, ca and ck. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.
Based on the concepts of recessivity, determine whether ck and ca were dominant or recessive alleles by crossing the true-breeding albino hamsters  with the true-breeding sepia hamsters. From the resulting F1 progeny phenotype, what would be the ratio of F2 phenotype
TLS Online TPP Program

#Question id: 5363

#Unit 8. Inheritance Biology

A Southern blot using a probe that binds to the region spanning the mutation causing albinism detects one DNA fragment in homozygous normal individuals (A/A) and two fragments in albino individuals (a/a). Following banding pattern of three offspring of parents? Which of the following correct regarding parents?
TLS Online TPP Program

#Question id: 5291

#Unit 8. Inheritance Biology

A number of nutritional mutant strains were isolated from wild-type Neurospora that responded to the addition of certain supplements in the culture medium by growth ( + ) or lack of growth ( -). Given the following responses for single gene mutations, diagram a metabolic pathway that could exist in the wild-type strain that is most consistent with the data. Indicate where the pathway is blocked in each mutant strain.
TLS Online TPP Program

#Question id: 4141

#Unit 3. Fundamental Processes

Bacterial ribosomes: