TLS Online TPP Program

#Question id: 9180


Which of the following statements can be accurately made about light in aquatic environments?

#Unit 9. Diversity of Life Forms
  1. Water equally reflects and absorbs all wavelengths of light.
  2. Longer wavelengths penetrate to greater depths.
  3. Light penetration largely limits the distribution of photosynthetic species.
  4. Most photosynthetic organisms avoid the surface where the light is too intense.
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TLS Online TPP Program

#Question id: 5450

#Unit 8. Inheritance Biology

Which of these definitions of heritability is most correct?

TLS Online TPP Program

#Question id: 5751

#Unit 8. Inheritance Biology

A biochemical mutant that must be supplied with a particular nutrient for growth would be described as a(n)

TLS Online TPP Program

#Question id: 5346

#Unit 8. Inheritance Biology

The following typical pedigree illustrates the key point that affected children are born to unaffected parents: Which of the following is correct statement?

TLS Online TPP Program

#Question id: 13144

#Unit 8. Inheritance Biology

Shell coiling of the snail Limnaea peregra(genetic maternal effect)  the shell coils (s+s+) which is termed dextral coiling, while some snails exhibiting sinistral coiling (ss). The allele for dextral (s +) is dominant over the allele for sinistral (s). If a male homozygous for dextral alleles (s+s+) is crossed with a female homozygous for sinistral alleles (ss) all of the F1 are heterozygous (s+s) and have a sinistral shell. If these F1 snails are self-fertilized, what is the phenotype of the F2 snail?

TLS Online TPP Program

#Question id: 12169

#Unit 8. Inheritance Biology

During the phenotypic variations, the genotype shows variation at different effect given in graph;


According to the graph , this is an example of,

TLS Online TPP Program

#Question id: 12168

#Unit 8. Inheritance Biology

The proportion of the total phenotypic  variation that is due to genetic differences is known as