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alina1380 [7]
3 years ago
12

Placing pressure on a cut will constrict blood vessels manually, and encourages ________.

Biology
1 answer:
Makovka662 [10]3 years ago
6 0
I am certain that placing pressure on a cut will constrict blood vessels manually, and encourages vascular spasms. 
Vascular spasms are sudden, brief tightening of the muscle cells inside the walls of a blood vessels. It is the first response as the blood vessels constrict to allow less blood to be lost. In the second step, platelet plug formation, platelet stick together to form a temporary seal to cover the break in the vessel wall, the third step is the coagulation or blood clotting. 
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Design an experiment to determine whether the pink flower of petunia plants results from incomplete dominance.
anzhelika [568]

Answer:

To cross petunia plants/lines with pink flowers (F1) which were obtained by crossing plants with red and white flowers (parental generation). The presence of petunia plants with red or white flowers in F2 would evidence that this trait is under incomplete dominance.

Explanation:

Incomplete dominance is a type of relationship in which both alleles are expressed in heterozygous individuals, thereby resulting in a new phenotype. This type of allelic interaction is commonly referred to as 'the dilution of the dominant allele' in heterozygous individuals. Moreover, codominance refers to a type of allele relationship in which both alleles are expressed to an equal degree in heterozygous individuals.

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3 years ago
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Answer:

The correct answer is the first option which represent the structure of a nucleotide.

Explanation:

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4 years ago
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