How Are Temperature Sensitive Mutants Used to Determine When Genes

question 6

Multiple Choice

How are temperature sensitive mutants used to determine when genes act during development?

• A)Embryos can be shifted to the non-permissive temperature to inactivate the mutant gene and the effect of inactivation on subsequent stages observed.
• B)Embryos can be shifted to the permissive temperature to inactivate the mutant gene and the effect of inactivation on subsequent stages observed.
• C)Adults can be shifted to the non-permissive temperature to inactivate the mutant gene and the effect of inactivation on fertilization can be observed.
• D)Embryos can be shifted to the permissive temperature to activate the mutant gene and the effect of activation on subsequent stages observed.

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Definitions:

Cash Flow

The total sum of cash and cash-equivalents that flows in and out of a company.

Present Value

The worth at present of a future money amount or cash flow sequences, evaluated using a certain rate of return.

Future Value

The future value of an asset or cash that, on a specific future date, is equal in worth to a given amount today.

Cash Flow

The total financial movement entering and exiting a business, substantially affecting its operational liquidity.