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sattari [20]
3 years ago
12

Which principle helps to explain the reason behind why alleles for a single trait separte

Biology
1 answer:
vichka [17]3 years ago
5 0
<span>Segregation would be the answer :)</span>
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Describe an experiment you could perform to determine whether the pink flowers of a petunia plant result from incomplete dominan
RUDIKE [14]

Incomplete dominance is an exception to Mendelian principles of genetics. The pink flowers of a petunia plant result from incomplete dominance and this has been experimentally determined.

The crossing between petunia plants shows an exception to Mendel’s principles. As a result of crossing the first generation homozygous petunia plants, some alleles of the first cross generation of the petunia flowers were in between the two dominant alleles which meant they were neither dominant nor recessive to the characteristics.

The F1 generation produced by a crossing the red-flowered (RR) plants and the white-flowered (WW) petunia plants consisted of pink-coloured flowers (RW) as the first progeny. Neither of the allele was dominant here. The cases where one allele does not completely dominate another are known as incomplete dominance. The heterozygous phenotype is supposed to occur between the two homozygous phenotypes in incomplete dominance. Phenotype refers to the colour here and genotype is a representation of alleles.

The representation of the genotypes is as follows:

White coloured dominant parent petunia plant: WW

Red coloured dominant parent petunia plant: RR

The colours white and red are the phenotypes and WW or RR is the genotype of parental alleles.

When the red and white flowered petunia plants were true breaded which means the red and white flowered petunia plants had red and white colour as their dominant characteristic and they were homozygous.

The result that was seen of this true breeding was heterozygous pink flowered petunia plants in the F1 generation. The pink colour phenotype of the flowers was an intermediate between the two dominant red and white coloured petunia flowers. This meant that the allele for the red flowers were incompletely dominant over the white flowers giving rise to pink flowers.

The genotype of the pink coloured petunia flowers as well as the corresponding phenotype can be represented by the Punnet squares.

5 0
3 years ago
when someone eats bad fatty foods like pork or french fries, what does this cause in the blood vessels or arteries
skelet666 [1.2K]

Answer:

The Power of Food

Cholesterol can combine with fat, calcium, and other substances in the blood to form plaque. Plaque then slowly builds up and hardens in the arteries, causing them to narrow. This buildup of plaque, a condition called atherosclerosis, can lead to heart disease, heart attack, and stroke.

Explanation:

pa brain lest thank you°^°

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2 years ago
When an atom loses electrons, it becomes positively charged.
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Yes ..................................
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3 years ago
What is the central glowing region that is brighter than the area around it?
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I’m on that same question
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Which joint has sacrificed stability to provide great freedom of movement?
yawa3891 [41]
<span>Social Joint was sacrificed in order to produce a more stable and moving governance and economy. 

The Progressive Movement was actually aimed at taking out the corrupt individuals from the system and giving the people a healthy atmosphere. This movement worked for women suffrage as well.</span>
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3 years ago
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