Number 6 please help!

An example of vesicle-mediated transport would be:

WITCHER [35]

An example of vesiscle-mediated transport would be cell secretion by exocytosis.

The reason why this would be an example of vesicle-mediated transport is because all the other types of transport listed here are not something you would call vesicle-transport; the substances don't really get transported in vesicles. This is different in exocytosis where the compounds gets packaged into vesicles.

5 0

3 years ago

A population of 100 tigers has 30 with horizontal stripes. Using pedigrees, you ascertain that horizontal striping is caused by

bixtya [17]

Assuming that this population is in Hardy-Weinberg equilibrium, we can sayt that the probability that, given enough time, all tigers in the population will have horizontal stripes is 30% = 0.3.

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Available data:

Population size, N = 100 tigers
Number of Tigers with horizontal stripes = 30
Horizontal stripes is caused by an autosomal recessive mutation.

We need to know the probability that all tigers in the population will have horizontal stripes, which is the recessive phenotype.

We assume that the population is in Hardy-Weinberg equilibrium, so there should be no evolution.

Since the population is in H-W equilibrium, the allelic, genotypic and phenotypic frequencies will remain the same generation after generation.

Now, we will calculate the allelic and genotypic frequencies of horizontal striped individuals in the population.

There are 100 individuals, and only 30 have horizontal stripes.

So, the phenotypic frequency, F(HS) is 30/100 = 0.3 = 30%

Since this is a recessive phenotype, this value equals the genotypic frequency, F(hh) = 30%

Finally, we can get the allelic frequency by taking the square root of this value.

F(hh) = q² = 0.3

f(h) = q = √0.3 = 0.55 = 55%

According to these calcs, the probability for the fixation of the recessive allele is 55%, and the probability that all individuals express the recessive horizontal stripes phenotype is 30%.

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You can learn more about Hardy-Weinberg equilibrium at

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6 0

3 years ago

DHEA is a hormone involved in muscle growth, bone density, and the functioning of the cardiovascular system. DHEA production inc

sertanlavr [38]

Answer:

5%

Explanation:

The adrenal cortex in both males and females produce a small amount of weak androgens. One of the major weak androgen secreted by adrenal cortex is dehydroepiandrosterone (DHEA).

Levels of dehydroepiandrosterone secretion exhibit changes with age. The dehydroepiandrosterone secretion increases till the age of 20-24 years and falls off with increasing age after the age of 30 years in both males and females. The DHEA production at the age of 80 years is about 5% of its secretion at the age of 30 years.

7 0

3 years ago

How does exercise affect a person's body and homeostasis?

nexus9112 [7]

Answer:

In explanation.

Explanation:

-Exercise effects on the person's body and homeostasis.

Exercise stimulates the sympathetic nervous system and will induce an integrated response from the body; This response works to maintain an appropriate level of homeostasis for the increased demand in physical, metabolic, respiratory, and cardiovascular efforts.

-The Effect of Exercise on Homeostasis

1. Increased Oxygen Consumption.

2. Increased Oxygen Delivery.

3. Increased Body Temperature.

4. Increased Release of Carbon Dioxide.

5. And more.

-More information in this link (if you are looking for homeostasis effects): https://www.livestrong.com/article/369714-how-does-the-body-maintain-homeostasis-in-response-to-exercise/

-More information in this link: https://www.ncbi.nlm.nih.gov/books/NBK482280/

7 0

3 years ago

This type of mutation is called a __________ mutation when there is a simple change in one base of the gene sequence.

ICE Princess25 [194]

Answer:

it may be point or silent mutation,they're both kinda the same thing.

7 0

3 years ago