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TLS Online TPP Program

#Question id: 10743

 Darlington proposed that

#Unit 10. Ecological Principles
  1. Climax communities are self-maintaining
  2. The number of species inhabiting an island doubles with every tenfold increase in area
  3. Extinction rates are higher on larger islands and lower on smaller islands
  4. The number of species of a taxon inhabiting an island maintains a dynamic equilibrium, with the immigration of new species balancing the extinction of previously established species
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TLS Online TPP Program

#Question id: 3537

#Unit 8. Inheritance Biology

What is the probability of two offspring in which one dominant phenotype and one recessive phenotype from the mating Aa × Aa?
TLS Online TPP Program

#Question id: 3538

#Unit 8. Inheritance Biology

Monohybrid cross allowed between heterozygous Rr (Round) and RR (Round), all progeny having Round seeded plant were allowed to self-fertilize to produce numerous progeny that are 
TLS Online TPP Program

#Question id: 3542

#Unit 8. Inheritance Biology

All genes are not linked. The probability of a progeny being AaBBccDd from a corss between AABbccDd and aaBBccDD parents will be
TLS Online TPP Program

#Question id: 3545

#Unit 8. Inheritance Biology

Consider the accompanying pedigree of a rare autosomal recessive disease, PKU. Male with PKU marry with normal female whose father is PKU. What is probability of child affected with PKU?
TLS Online TPP Program

#Question id: 4900

#Unit 8. Inheritance Biology

The chlorophyll-deficient types occur in a particular plant species due to a mutation in the DNA of the chloroplast itself, Female cytoplasm chlorophyll-deficient organisms crossed with male normal chlorophyll will produce progeny
TLS Online TPP Program

#Question id: 17809

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are members of Generation 2, and one parent is albino and the other is non-albino.