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Mekhanik [1.2K]
2 years ago
6

What is the most likely explanation for wes's observations?

Biology
1 answer:
Lyrx [107]2 years ago
4 0

The red blood cells were placed into an isotonic solution. Water moved into and out of the cells to maintain homeostasis.

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Which of the following organs is not part of the excretory system?
finlep [7]
The correct answer is D :)
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3 years ago
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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
Why does your pulse rate increase while you run???
Stella [2.4K]
When you run it makes your heart pump blood faster ,when your pulse is up it means you veins are flowing blood and your blood has good circulation 
5 0
3 years ago
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PLEASE HELP ME!! 55 POINTS AND I WILL MARK BRAINLIEST IF YOUR ANSWER ACTUALLY HELPS ME!!
malfutka [58]

Answer:

Explanation:

1) 1/2 or 50% for both

2) 5/10 or 50% for both

3)7 heads 3 tails

4)50 heads and 50 tails I expect 50% head 50% tail

5) 50 of the tosses were heads while the other 50 was tails./

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3 years ago
This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person
Nostrana [21]

Answer:

The thermal energy will flow from the computer to the person.

Explanation :

Usually computer are such devices which converts electrical energy into thermal energy and then it gets transferred to the person. The energy flows from the higher amount to lower amount. In this case, computer is producing higher thermal energy than the person that’s the reason for the flow of energy from computer to the person.

3 0
3 years ago
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