All categories

3 years ago

In a species of chickens, incomplete dominance between alleles for black (B) and white(w) feathers

Biology

1 answer:

MariettaO [177]3 years ago

6 0

Answer:

1/2

Explanation:

This question involves a single gene coding for feather color in chickens. The black allele (B) is incompletely dominant over the white allele (W). This means that the allele B will not mask the phenotypic expression of allele W, hence, a third intermediate blue phenotype (BW) will be produced.

According to the question, if two blue chickens are crossed i.e. BW × BW, the gametes B and W will be produced by each parent. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:

BB, BW and WW in the ratio 1:2:1

BB is black, BW is blue, WW is white. Hence, the probability of producing a blue chicken from this cross is 1/2.

You might be interested in

When you read, your eyes fixate for a fraction of a second, and then jump to a new point in the text. Your reading experience is

madam [21]

<u>Sensory</u> memory.

Explanation:

Sensory memory is the type of memory that stores information for a very brief period of time it is even shorter than the time period of the short term memory.

Sensory memory helps the brain to hold the effects of a sensory stimulus for sometime even after the stimulus has ceased. This helps in continuous perception and processing of data in the brain.

The expression of continuous reading, writing and speaking are due to the existence of sensory memory.

If sensory memory does not function properly then, the synchronization of words and their understanding would have been impossible.

7 0

3 years ago

Which sentence best explains how enzymes speed up a chemical reaction?

givi [52]

Enzymes lower the activation energy of a chemical reaction.

6 0

4 years ago

Read 2 more answers

Two butterflies mate and a genetic mutation causes the offspring to be a different color. Is this an example of biological evolu

brilliants [131]

A genetic mutation results in the offspring of two butterflies being a different color. There is no evidence of biological evolution in this.

In populations of organisms, biological evolution is the change in hereditary features through successive generations. When diversity is added to a population through gene mutation or genetic recombination or removed by natural selection or genetic drift, features undergo evolutionary alteration. the gradual genetic change within a population. What is the most likely outcome if two species rejoin after many generations if allopatric speciation has place after a population split into two different populations?

Learn more about biological evolution here.

brainly.com/question/28209558

#SPJ4

3 0

2 years ago

Please compare and contrast the anatomical and physiology role of the meniscus and the labrum

zvonat [6]

Answer:

Anatomy of the meniscus: superior view of the tibial plateau ... In contrast, cells in the inner portion of the tissue appear more round and are ... Following comparison of these treatments, results showed that the combination of

Explanation:

3 0

3 years ago

Plants, such as sunflowers, contain specialized receptor cells that respond to light and grow in the direction of a light source

loris [4]

Photoreceptor proteins are light-sensitive proteins involved in the sensing and response to light in a variety of organisms. Some examples are rhodopsin in the photoreceptor cells of the vertebrate retina,phytochrome in plants, and bacteriorhodopsin<span> and bacteriophytochromes in some bacteria.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>

5 0

4 years ago