How can alleles that cause serious diseases still provide an advantage to the human population

Answers

Answer 1
For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria

Related Questions

how do the nucleus and ribosomes work together to generate a protein?

Answers

Answer:

In the nucleus, an mRNA copy of a gene is produced, which ribosomes use as instructions to synthesize a specific protein.

what are the intercellular junctions between plant cells?

Answers

Answer:

The intercellular junctions between plant cells are known as plasmodesmata and are used to transfer materials and molecules between neighboring cells.

What are greenhouse gases?

Answers

Answer:

Greenhouse gasses contribute to the greenhouse affect in that they absorb infrared radiation.

Some examples of greenhouse gasses are such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals.

Hope this helps!

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Greenhouse gases are those gases in the atmosphere that have an influence on the earth's energy balance. They cause the so-called greenhouse effect. The best known greenhouse gases, carbon dioxide (CO2), methane and nitrous oxide, can be found naturally in low concentrations in the atmosphere. However, the proportion has increased significantly since the beginning of the last century due to various man-made sources.

In addition to these trace gases, which can only be found in very low concentrations in the atmosphere, water vapour is probably the most important greenhouse gas. However, it only plays a major role in relation to the natural greenhouse effect, since the absorption capacity of water vapour in the air is directly related to temperature. Water vapour therefore has little influence on man-made climate change.

¿Porque el nitrogeno es esencial para el crecimiento de los hongos, pero no para la aparicion del oxido?

Answers

Moho es el término que se utiliza comúnmente para describir una sustancia de aspecto aterciopelado, originada por hongos, que crece en los materiales orgánicos, especialmente en presencia de humedad y de descomposición de los mismas. Los hongos son parte de una variedad de microorganismos parasitarios que se alimentan de organismos vivos o de materias orgánicas muertas.

What is the difference between a hypothesis, a theory and a law in science?

Answers

A hypothesis is an idea or hunch someone has a theory basically the answer to solve a question

Please label the cells I fell like I’m not right

Answers

Answer:

Phospholipids    B

Transport Protein A

Explanation:

I need help ASAP. I WILL GIVE BRAINLIST!!!!

Answers

Answer:

The fish are reproducing and adapting to the birds.

Explanation:

As the birds continue to swipe up the fish, time goes by and they get stronger and adapt better to the environment. Though this will not guarentee 100% protection, it sure helps the fish survive and reproduce for longer periods of time.

what is the difference between a dietitian and a nutritionist

Answers

Answer:

Nutritionists deal with general dietary goals and habits, as opposed to dietitians, who are certified to diagnose eating disorders and develop diets to address particular medical problems. Schools, hospitals, cafeterias, long-term care institutions, and sporting groups all hire nutritionists.

Help!
Define the word Energy for me!
Thank you! :)

Answers

Answer:

Energy:

The rate of movement per unit time of an object relative to all the other objects in the universe.

Generally we have it relative to the road on earth. For instants, you could travel 80 miles per hour relative to the road.

Answer:              

Energy:

- power is derived from the utilization of physical or chemical resources, especially to provide light and heat to work machines.

- the strength and vitality for sustained physical or mental activity.

Explanation:

what role do ribosomes play in the central dogma of molecular biology?

Answers

Ribosomes are responsible for producing and synthesizing proteins in the cell

The green molecules are moving from an area of high concentration to an area of low concentration. When will this movement will stop?


A. When all the green molecules are on the right side.
B. When more green molecules some of the green molecules have moved.
C. When there is an equal number of green molecules on each side.
D. When all the energy is used up.

Answers

C. When there is an equal number of molecules on each side

Can someone help me on this? Pleaseee thank you so much!!

Answers

Answer:

9. It is living because it has the characteristics of living creatures.

10. The lichen uses energy, is made of cells, maintains homeostasis,  grows and develops, and responds to the environment.  Therefore, it is living.

Explanation:

changes that occur in girls only in adolescence​

Answers

-Body Hair.


The girl's body shape will also begin to change. There may be an increase not only in height and weight, but the hips may get wider as well. There may also be an increase in fat in the buttocks, legs, and stomach. These are normal changes that may happen during puberty.

HOPE THIS HELPS YOU!!

How do two chromosomes pass from a parent cell to two daughter cells ?

Answers

Answer:

mitosis

Explanation:

they pass through mitosis- remember it like "ow, my toe sis" like you're talking to your sister, meaning your sister is someone's daughter, the daughter cell

Answer: The mitosis division process has several steps or phases of the cell cycle—interphase, prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis—to successfully make the new diploid cells.

The p53 gene in mammalian cells is known to stop the cell cycle in response to damaged DNA. If this gene is damaged without repair, which of the following is most likely to occur

Answers

Answer:

very tuff

Explanation:

sorry! I wish I could help this is very forestraiting

Could someone please explain this to me in more simpler words? I am not the best at understanding scientific words


design, conduct, and evaluate an investigation to gather evidence that photosynthesis converts light energy to stored chemical energy by showing how leaves take in carbon dioxide and release oxygen at a measurable rate.


Thank you to whoever can help!! I very much appreciate it.

Answers

In simpler words this is telling you to make, preform, and explain an investigation to gather evidence that proves that the process of  photosynthesis converts light from the sun by making a model or picture of carbon dioxide going into the leef and oxygen  coming out at a rate (speed) that you can mesure.

Hope this helps,

Why are there holes in the ends of phloem tubes?

Answers

There are holes in the end of the phloem tubes because Phloem consists of sieve tube cells and companion cells for conduction of food These sieve elements are placed end to end . At the the junction of two sieve elements there is a plate called sieve plates having circular pores.

what happens to food substances that are not absorbed?

Answers

Answer:

Materials not absorbed in the colon are excreted as waste products in the feces.

Explanation:

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food that hasn't  been abored become stool

Would you expect an ecosystem that had not been disturbed for 20 years to remain the same? Explain why or why not.

Answers

Yes because here’s no causes for need of change

i need answer please​

Answers

Explanation:

the correct answer is what you have selected.

hope this helps you.

What are the most common cleaning agents used by different food-establishments?​

Answers

Answer: detergents, degreasers, abrasives, and acids.

Cranberry juice costs $6.30 per quart and apple juice costs $3.60 per quart. Terrance wants to make a mixture of apple and cranberry juice that sells for $4.50 per quart. How many quarts q of cranberry juice should he mix with 4 quarts of apple juice to make cranberry-apple at that price? Write an equation to represent this situation. plz help its due today thank you

Answers

The answer to this question is x +4y = 4.5

What is not a key fluid or molecule that excretion balances?
Nitrogenous waste
Water
Salt
Lymph

Answers

Lymph is not a key fluid or molecule that excretion balances

Using your own words explain how the process of
Cellular Respiration occurs (hint - what must go in
and what is created?)

Answers

Answer:

During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water.

Explanation:

what is the primary form in which carbon dioxide is carried in blood?

Answers

Answer:

bicarbonate

Explanation:

Carbonic acid almost immediately dissociates into a bicarbonate anion (HCO3-) and a proton. Thus, bicarbonate is the primary means by which carbon dioxide is transport occurs throughout the bloodstream according to the equation CO2 + H2O --> H2CO3 --> H+ + HCO3-.

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(WILL GIVE BRAINLIEST) A doctor's patients complain less about their acid reflux symptoms after taking Prilosec for 4 weeks. What is the Independent Variable? What is the Dependent Variable?


a) the severity of symptoms

b) Prilosec

c) the amount of complaints about symptoms

Answers

B it’s the correct answer

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Why is sample size important in determining probability

Answers

Answer:

Explana

sample size is important in determining probability because the number of objects is too small to yield inaccurate results. ... Probability is the chance that an event will happen. Its based on observations, data. Risk is the probability of a negative outcome.tion:

The sample size is important in determining probability because the number of objects could be too small to yield inaccurate results.

What is probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has included probability to forecast the likelihood of certain events. The degree to which something is likely to happen is basically what probability means.

You will understand the potential outcomes for a random experiment using this fundamental theory of probability, which is also applied to the probability distribution. Knowing the total number of outcomes is necessary before we can calculate the likelihood that a certain event will occur.

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about how probable an event is to happen or its likelihood of happening.

Probability can vary from 0 to 1, with 0 being an impossibility and 1 denoting a certainty. For pupils in Class 10, the probability is a crucial subject since it teaches all the fundamental ideas of the subject. One is the probability of every event in a sample space.

Therefore, the sample size is an important determinant.

Read more about probability, here

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Somebody help me please

Answers

Answer:

it's 3 because it just is to be honest

help me please asapppppp​

Answers

Answer:

because it cannot support tree roots . so i think its . first one quick .

Determine which of the following characteristics are environmental, not inherited. I. Weight II. Blood group III. Language spoken IV. Eye color A. II & IV B. I & III only C. I & II D. I, II, III

Answers

Answer:

Weight and blood group

Explanation:

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