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Natasha2012 [34]
2 years ago
14

What is the order of these layers from youngest to oldest? What principles of relative dating did you

Biology
1 answer:
gayaneshka [121]2 years ago
4 0

Answer:

The law of superposition states that rock strata (layers) farthest from the ground surface are the oldest (formed first) and rock strata (layers) closest to the ground surface are the youngest (formed most recently).

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Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive allele in humans. A woman whose father
prohojiy [21]

Answer:

(a) 1/2; (b) no

Explanation:

Glucose-6-phosphate dehydrogenase deficiency (G6PD) is an X-linked recessive disorder and the woman's father was diseased so it means that woman is a carrier of the allele but has normal phenotype. It means that she will have XXᵇ genotype.

In contrast to this, her husband is diseased so his genotype will be XᵇY.

The Punnett square diagram related to the cross is attached.

(a) Proportion of their sons expected to be G6PD is 1/2:

They both may give birth to 4 progeny with genotypes XXᵇ, XᵇXᵇ, XY and XᵇY. It means they both may have 2 sons out of which one with genotype XᵇY will be diseased while the one with genotype XY will be healthy. So the proportion of their sons having G6PD is 1/2 or 50%.

(b) If the husband were G6PD deficient, the answer will not change.

The reason behind this is that this disease is caused by an allele located in X chromosome. But father contributes only Y chromosome to his son not X chromosome. The X chromosome will affect the genotype of his daughter not son that is why answer will not change. It means they will still have 1/2 of their sons diseased.  

7 0
3 years ago
Cellular functions can be grouped into which three general categories?
Elena L [17]

Answer:

cell division

protein synthesis

growth and metabolism

Explanation:

idk if this is right I just looked it up

8 0
3 years ago
The Ellele for tall pea plants is dominant over the allele for short pea plants. what must be true for a cross between a tall pl
Sedbober [7]
The reason I said that you are wrong is because no


3 0
3 years ago
All of the following are typical physiological effects of dehydration except _______. Multiple Choice increased blood osmolality
Tatiana [17]

According to the research, all of the following are typical physiological effects of dehydration except <u>osmolality decreased</u>.

<h3>What is dehydration?</h3>

It is the process that refers to eliminating or losing the water that is part of the composition or that contains an organism.

Among the most frequent effects are thirst, osmolality increases, increased sweat rate, dry skin and fatigue.

Therefore, we can conclude that according to the research, all of the following are typical physiological effects of dehydration except osmolality decreased.

Learn more about dehydration here: brainly.com/question/12261974

#SPJ1

3 0
2 years ago
Soon after the island of Hawaii rose above the sea surface (somewhat less than 1 million years ago) and organisms colonized the
Readme [11.4K]

Answer:

Let's complete the question by adding the options to it

A) genetic bottleneck.

B) sexual selection.

C) habitat differentiation.

D) founder effect.

The RIGHT ANSWER IS D)

D) founder effect.

Explanation:

The founder effect refers to a loss in genetic variation due to formation of a new population from few number of individuals out of a larger population.

4 0
3 years ago
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