The Food Pyramid suggests that a healthy diet consists of a large portion of:

A woman with normal vision has a son. The woman’s maternal grandfather is color-blind. What is the probability that the son is c

Reptile [31]

Answer:

= $\frac{1}{4}$

Explanation:

Given that the woman’s maternal grandfather is color-blind, then it is possible that the woman is a carrier of color-blind allele.

Then probability that the woman is a carrier of color-blind allele is = $\frac{1}{2}$

So if a carrier woman cross with a normal man

Let say the gene of the carrier woman is: $XX^c$

and the normal man = $XY$

so if we have a cross between $XY$ and $XX^c$ ; we have:

$X$ $Y$

$X$ $XX$ $XY$

$X^c$ $XX^c$ $X^cY$

we can see the offspring to be :

$XX$ =normal unaffected female

$XY$ = normal unaffected male

$XX^c$ = carrier female for color-blind

$X^cY$ = carrier male for color-bind

Then probability that of inheriting defective allele = $\frac{2}{4}$ = $\frac{1}{2}$

Let's not forget that the probability that the woman is a carrier of color-blind allele is = $\frac{1}{2}$

∴ the probability that the son is colorblind = $\frac{1}{2}*\frac{1}{2}$

= $\frac{1}{4}$

3 0

3 years ago

Discuss how important you think it is to protect ecosystems from human-induced change, such as changes in habitat or introductio

Monica [59]

Answer:

Answer = explanation.

Explanation:

If we think deeply about the matter, animals are way more important than humans and our needs, since nature depends on the relationship animals have with each-other and not on anything humans do. Historically, we were part of nature, but that was when we were still hunting, gathering and reproducing, not making trillions of plastic bags every year.

Natural conditions should be preserved at all costs, in other words, it comes first, and our needs should come last, in a very environmentally conscious society, that is. If we continue putting ourselves and our needs first, future generations will have a really nasty world to live in. But, since humands have their needs, we should maintain them, as long as they're within the "things I need to survive, study and work" range of needs, otherwise, we will be talking about unnecessary stuff.

Hope it helped,

BiologiaMagister

5 0

2 years ago

LAST ONE!!!

Vlad1618 [11]

The equation that shows the decomposition of silver carbonate are;

2Ag2CO3 ---------> 4Ag + 2CO2 + O2

From the periodic table:

Mass of silver = 107.8682 grams

Mass of carbon = 12 grams

Mass of oxygen = 16 grams

Molar mass of Ag2CO3 = 2(107.8682) + 12 + 3(16) = 275.7364 grams

From the balanced equation above:

2(275.7362) = 551.4728 grams of Ag2CO3 produces 4(107.8682) = 431.4728 grams of Ag

Thus, in order to know the mass of Ag produced from 2.76 grams of Ag2CO3, we'll use the cross multiplication method;

Mass of Ag produced = (2.76 × 431.4728) / (551.4728) = 2.16 grams

Based on the calculations demonstrated above, the law of conservation of mass is applied.

7 0

3 years ago

Which hormones, when working together, help shunt blood to vital organs?

Evgesh-ka [11]

Examples would be epinephrine or adrenaline and norepinephrine. These are neurotransmitters of the sympathetic nervous system which is responsible for fight/flight response during situations that either threatens the host’s survival. Now, these neurotransmitters vasodilate the blood vessels increasing the flow of blood to many vital organs. Physiologically, increased heart rate, increased motor function and dilated pupils are some of the biological reactions to stressful situations.

4 0

3 years ago

How much variation is there between parents and their offspring Sexual

Vedmedyk [2.9K]

Answer:

Hi there! So let's get this straight, when sexually reproducing organisms, each parent that contributes to half of each gene for the offspring. Each individuals will have two chromosomes and two alleles for each of the genes, which means one is acquired from each of the parents. Hope this helps

7 0

3 years ago