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Harman [31]
3 years ago
9

It is common knowledge that elephants are deathly afraid of mice. What is not so common knowledge is the reason why. Clearly it

can't be that the elep
Biology
1 answer:
Snowcat [4.5K]3 years ago
6 0

Explanation:

mice can bite the elephant's trunk and/or feet and they can get the elephants a surprise.

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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
A person who sprints for 45 seconds obtains most of his or her energy from _______. multiple choice
ArbitrLikvidat [17]

A person who sprints for 45 seconds will obtain most of his or her energy from muscle glycogen.

<h3>Energy metabolism during sprints</h3>

During sprinting or highly intense exercise activities, blood glucose is rapidly consumed. Rapid consumption of blood glucose may breach the blood glucose set point.

In order to maintain blood glucose homeostasis, glucose stored as glycogen in the muscles is converted back to glucose. The glucose is then utilized to produce ATP for the sprint or exercise.

Thus, a person who sprints for 45 seconds will have to obtain most of their energy from the glycogen stored in the muscles.

More on glucose metabolism can be found here: brainly.com/question/4707439

#SPJ1

A) muscle triglycerides.

B) plasma free fatty acids.

C) blood glucose.

D) muscle glycogen.

3 0
1 year ago
True or False: Hormones are a group of chemicals released by exocrine glands
brilliants [131]

Hormones are a group of chemicals released by exocrine glands

\huge\mathfrak\red {True}

These hormones are directly secreted into bloodstream from where they reach the site.

5 0
3 years ago
Can fossil conservation take place on asphalt?
lions [1.4K]

Answer:

nope

Explanation:

6 0
3 years ago
Mitosis is a form of cell division in which one cell divides into two new cells. Each new cell has the same number of chromosome
zepelin [54]

Answer:

growth

Explanation:

as the living organism grow, it's as a result of cell division

6 0
2 years ago
Read 2 more answers
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