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Alex787 [66]
4 years ago
9

The red kernel color in wheat is caused by the presence of at least one dominant allelefrom each of two independently segregatin

g gene pairs (e.g.,R-B-). Wheat plants withrrbbgenotypes have white kernels, and plants with genotypesR-bbandrrB-have yellowkernels. You cross a plant true breeding for red kernels with a plant true breeding forwhite kernels.a. What is the expected phenotype(s) and ratios of the F1plants?
Biology
1 answer:
BlackZzzverrR [31]4 years ago
7 0

Answer:

100% red kernel color

Explanation:

R_B_ = Red kernel color

R_bb and rrB_ = yellow kernel color

rrbb = white kernel color

True breeding red kernel x true breeding white kernel = RRBB x rrbb

F1 genotype ratio = 100% RrBb

F1 phenotype ratio = 100% red kernel color plant.

<em>The expected phenotype of the F1 plant is 100% red kernel color.</em>

<em />

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An international company has 24,900 employees in one country. If this represents 34.8% of the company's employees, how many empl
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Answer:

There are a total of <u>71,551 employees</u> in the company.

Explanation:

Let the number of employees in the company be 'x'.

Given:

Number of employees in one country = 24900

As per question:

34.8% of total employees = 24900

⇒ 34.8\%\times x=24900

\frac{34.8}{100}\times x=24900\\\\0.348x=24900\\\\x=\frac{24900}{0.348}\\\\x=71,551.7\approx71,551

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c. tinnitus

Explanation:

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Otitis externa is a condition that causes inflammation , the inflammation also covers  (redness and swelling) of the external ear canal, i.e the tube between the outer ear and eardrum.

Meniere's disease popularly called (MD), is a disorder of the inner ear that is characterized by episodes of feeling like the world is spinning (vertigo), hearing loss, and a fullness in the  ear. The cause of MD involves both genetic and environmental factors. Some of the factors include constrictions in blood vessels, viral infections, and autoimmune reactions.

Otosclerosis is a condition where one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule in the bony labyrinth. This condition affects one of the ossicles (the stapes) resulting in hearing loss, vertigo or a combination of symptoms.

Therefore from the foregoing we can conclude that Tinnitus is the correct anwser.

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