In the zygote, the cortical cytoplasm rotates about 30º with respect to the internal cytoplasm, this exposes a region of inner cytoplasm directly opposite the sperm entry point. This region is called as:

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#Question id: 12281

#Unit 10. Ecological Principles

For both tables the value of Shannon-Wiener Index

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#Question id: 4818

#Unit 3. Fundamental Processes

Researchers found a strain of E. coli bacteria that had mutation rates one hundred times higher than normal. Which of the following statements correctly describes the most likely cause of these results?

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#Question id: 11750

#Unit 7. System Physiology – Animal

Which of the following best describes the concept of specificity in sensory nerve fibers that transmit only one modality of sensation?

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#Question id: 15152

#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 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.

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#Question id: 12816

#General Aptitude

The length of a rectangular hall is 5m more than its breadth. Thearea of the hall is 750m2. The length of the hall is :