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irga5000 [103]
2 years ago
7

What is the expected phenotypic ratio for feather colour if two chickens with blue feathers are crossed

Biology
1 answer:
ss7ja [257]2 years ago
7 0

Answer:

The correct answer is - 1:2:1 for black : blue : white chicken.

Explanation:

We know that color of the feather is a trait of the chicken that shows the codominance type of inheritance pattern where both forms of the trait are dominant and make a mix of the forms. In this case, blue is heterozygous BW and black BB and white is WW, then crossed between BW with BW

gametes: B, W and B, W

Punnett

           B       W

B        BB      BW

W        BW     WW

thus, the phenotypic ration is - 1 black : 2 blue : 1 white

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What term refers to multinucleated cells that form when many host cells fuse together during infections?
stiks02 [169]

Answer:

The correct option is : d. Syncytia

Explanation:

Syncytia are the multinucleated cells formed from multiple fusions of the uninuclear cells.

During a infection, an infected cell fuse together with the neighboring host cells, leading to the formation of large multinucleated cells, called syncytia.

Viruses like herpesviruses, induce the formation of multinucleated syncytia cells.

7 0
3 years ago
Charles and francis darwin concluded from their experiments on phototropism by grass seedlings that the part of the seedling tha
wariber [46]
Charles and Francis Darwin concluded from their experiments on phototropism by grass seedlings that the part of the seedling that detects the direction of light is the "tip of the coleoptile."
7 0
3 years ago
Are humans primarily responsible for climate changes?
lana [24]

Answer:

yes

Explanation:

Humans do a lot of crazy stuff here on earth of course the things they do will have an effect on the earth itself.

6 0
3 years ago
What are three ways transgenic organisms can be used to benefit society?
NeTakaya

Answer:

The correct options are:

<em>A. To produce bacteria that can generate biofuels efficiently.</em>

<em>C. To produce bacteria that can generate medicines in large </em>

<em>amounts .</em>

<em>D. To produce crops that are resistant to pests.</em>

Explanation:

Transgenic organisms can be described as organisms which have a foreign gene inserted into their genome. Transgenic organisms are of huge economic importance and are emerging to provide benefit for humans and the Earth.

The transgenic organisms are being used as a replacement for fuel which will benefit the humans and the Earth.

Transgenic organisms have evolved and made strong roots in the field if medicine in today's world.

Transgenic plants are being used to produce crops which are resistant to pests and hence are of huge economical importance.

3 0
3 years ago
1. Which model best illustrates the formation of blood cells? A- dissected pig B- plastic bone C- photograph of a bone D- comput
Arisa [49]

Answer:

D- computer-generated model

Explanation:

Computer models are widely used to show real-life situations. Many biological, physical, chemical and engineering processes are easily simulated using a powerful computer system.

Therefore, the formation of blood cells can also be adequately simulated using a powerful computer system, hence the answer above.

8 0
3 years ago
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