TLS Online TPP Program

#Question id: 4723


The most common cause of the pleiotropic effect of gene is due to

#Unit 8. Inheritance Biology
  1. The same product of the given gene being involved in different metabolic pathways

  2. The gene making very different products in different cell types

  3. The DNA sequence of the gene getting changed in cell specific manner

  4. The gene not functioning in some cells

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TLS Online TPP Program

#Question id: 10954

#Unit 7. System Physiology – Animal

A patient suffers from a congenital deficiency in factor XIII (fibrin-stabilizing factor). What would analysis of his blood reveal?

TLS Online TPP Program

#Question id: 2261

#Unit 2. Cellular Organization

Oxidative metabolism is carried out ____ of mitochondria.

TLS Online TPP Program

#Question id: 15155

#Unit 8. Inheritance Biology

In this problem we will explore some of the many ways that mutations in two different genes can interact to produce different Mendelian ratios. Consider a hypothetical insect species that has red eyes. Imagine mutations in two different unlinked genes that can, in certain combinations, block the formation of red eye pigment yielding mutants with white eyes. In principle, there are two different possible arrangements for two biochemical steps responsible for the formation of red eye pigment. The two genes might act in series such that a mutation in either gene would block the formation of red pigment. Alternatively, the two genes could act in parallel such that mutations in both genes would be required to block the formation of red pigment.

Further complexity arises from the possibility that mutations in either gene that lead to a block in enzymatic activity could be either dominant or recessive. If the crosses between a wild type insect with red eyes and a true breeding white eyed strain with mutations in both genes. Such considerations yield the Pathways in parallel with dominant mutations in both genes, determine the phenotype of the F1 progeny and the expected phenotypic ratio of red to white eyed insects in the F2.

TLS Online TPP Program

#Question id: 14996

#Unit 8. Inheritance Biology

Which of the following most accurately restates Mendel's law of segregation?

TLS Online TPP Program

#Question id: 28206

#Unit 5. Developmental Biology

Genetic specificity of induction response is an___