TLS Online TPP Program

#Question id: 496


The metabolic function of the pentose phosphate pathway is:

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. act as a source of ADP biosynthesis.

  2. generate NADPH and pentoses for the biosynthesis of fatty acids and nucleic acids.

  3. participate in oxidation-reduction reactions during the formation of H2O.

  4. provide intermediates for the citric acid cycle.

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TLS Online TPP Program

#Question id: 3535

#Unit 8. Inheritance Biology

Phenotypic plasticity refers to  

TLS Online TPP Program

#Question id: 3536

#Unit 8. Inheritance Biology

What is the probability that selfing an F1 plant from Mendel dihybrid cross ( RrYy X RrYy) will produce an offspring with an rrYY genotype?

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: 3539

#Unit 8. Inheritance Biology

In cucumbers, orange fruit color (R) is dominant over cream fruit color (r). A cucumber plant homozygous for orange fruits is crossed with a plant homozygous for cream fruits. What are phenotype of progeny if backcross between the F1 and the orange parent.

TLS Online TPP Program

#Question id: 3540

#Unit 8. Inheritance Biology

You set up an experiment in which you breed two populations of true-breeding pea plants. The first true-breeding population has yellow round seeds and the second has green wrinkled seeds. All of the F1 plants yield yellow round seeds. When you self -fertilize the F1 the F2 generation yields a mixture of yellow round, yellow wrinkled, green round and green wrinkled seeds. What does this tell you about the alleles for seed color and shape?