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TLS Online TPP Program
#Question id: 15149
#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 is made 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 series with recessive mutations in both genes, what will be the phenotype in F1 progeny?
TLS Online TPP Program
#Question id: 1541
#Unit 4. Cell Communication and Cell Signaling
Nonphagocytic cell of immune system,
TLS Online TPP Program
#Question id: 10303
#Unit 6. System Physiology – Plant
During glycolysis, if radiolabelled the glucose at 3 or 4 carbon then what will be the correct prediction about radiolabelling in the cycle?
TLS Online TPP Program
#Question id: 12527
#Unit 6. System Physiology – Plant
Which of the following is the incorrect prediction about ABA translocation in vascular tissue by both the xylem and the phloem?
TLS Online TPP Program
#Question id: 15707
#Unit 12. Applied Biology
Mature and certain differentiated e.g., parenchyma and often colenchyma cells undergo changes to become meristematic, this is called