Explanation: Since the chickens are intermediate in colour, that is they are not black, they are heterozygous. Let B represent the allele for black colour and B represent the allele for blue colour, therefore the genotype of a chicken with an intermediate colour is Bb. A cross between two Bb chicken will produce 1 BB, 2 Bb and 1 bb chicks. 1 BB will manifest outwardly as black, 2Bb will manifest outwardly as intermediate colored while 1 bb will manifest outwardly as blue colored chicks.

Since one out of four chicks are black colored, if the two chicken produced 100 chicks, the number of chicks that will be black is 1/4 x 100 = 25. Therefore, 25 chicks out of 100 will be black.

See the attached punnet square for more information

7 0

3 years ago

Houses have been built around a small retention pond, increasing the fertilizer runoff into the pond. This has led to algal bloo

Flura [38]

Answer: The population will evolve, leaving only those genetically equipped to deal with low oxygen levels. brainliest

Explanation:

8 0

3 years ago

which of the following produces the energy, initial motion and direction of the surface current of the ocean

hoa [83]

Wind produces the energy, initial motion and direction of the surface current of the ocean.An ocean current is a seasonal directed movement of seawater.
Surface ocean currents are primarily affected by wind. The Gulf Stream is example of it. Trade winds push water along the top of the ocean and this results in formation of surface currents.

6 0

2 years ago

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