A test cross is a cross that is made between an organism with an unknown dominant genotype and an organism that purebred recessive genotype for the particular trait. It determines if the unknown genotype of the individual being tested is purebred allele dominant or heterozygous for the trait.

If all offspring in F1 generation has phenotypically dominant trait then the tested organism is pure breed dominant and if half of the offsprings have the phenotypically dominant trait and half show recessive trait then the organism to be tested is heterozygous or hybrid.

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2 years ago

Which of the following activities contributes most to climate change? A. Swimming B. Walking to school C. Driving or riding in a

astra-53 [7]

C driving or riding in a car because the fossil fuels that come out the engine are bad for the environment

7 0

3 years ago

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If a cell has 2% sugar inside of the cell, and is placed into a solution with 12% sugar, in which direction will the water mostl

artcher [175]

Answer:

outside of the cell do to the concentration gradient