How does your DNA determine whether you develop sickle cell anemia

Answers

Answer 1

Answer: sickle cell is a recessive trait.
that means that you have to inherit the gene from both your parents.
eg, if each of your parents has one good copy, and one defective copy of the gene, there will be a 25% chance you'll get 2 copies of the defective gene.
when that happens, before modern medicine, you'd probably die.

however, if you had 1 good copy, and 1 defective copy, then you'd not get malaria.
in a part of the world where most folks get malaria repeatedly, the benefits outweigh the problems.

thalassemia is a related genetic condition that also offers some protection against malaria, however, just as with sickle cell, if you get too much of the gene, your chances for survival are not good.

both cases are interesting results of mutation and natural selection.

Related Questions

All of the following are traits of echinoderms excepta. five-part radial symmetry.b. a pair of antennae.c. tube feet.d. an internal skeleton.
Why is cellulose freely permeable?
Name the stage of mitosis that is being described by each sentence.
Colorado has a vast population of lodgepole pines. A population of lodgepole pines have been killed in a section of the forest. What is a possible limiting factor of that population?
Punnett square are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. A pansy that is homozygous for purple flowers (PP) is crossed with a pansy that is homozygous for pink flowers (pp). Which genotypes will be included for the offspring in the Punnett square for this cross?

Why is the Tree of life so complicated

Answers

A basic source of the confusion is that in the course of evolution wholesuites of genes have apparently been transferred sideways among themajor branches. Among animals, genes are passed vertically from parentto child but single-celled creatures tend to engulf each other andoccasionally amalgamate into a corporate genetic entity. It has longbeen argued that mitochondria, the tiny organelles that handle theenergy metabolism of eukaryotic cells, were once free-living bacteriathat were enslaved by an early eukaryote. Mitochondria still possesstheir own, bacteria-like DNA but many of their genes have emigrated intothe eukaryotic cell's own DNA in the nucleus.

it's not complicated it just has a lot of parts to it which makes it look so complicated

Which of the following is true of conifers? answers:
Female cones produce pollen that fertilizes the egg.

Most coniferous trees have both male and female cones.

Male cones cannot produce pollen unless fertilized by the female cone.

Female cones produce pollen that is trapped by the male cones’ scales

Answers

"Female cones produce pollen that is trapped by the male cones’ scales" is the one among the following choices given in the question that is true of conifers. The correct option among all the options that are given in the question is the fourth option or the last option. I hope the answer helps you.

(Female cones produce pollen that is trapped by the male cones’ scales) is not the correct answer because I got it wrong I dont know what the correct answer is because it doesn't show you if you got it wrong.

5. How does water reach the leaves from the root? A) Stomata B) Xylem C) Phloem D) All of the above

Answers

Answer:

B.Xylem

Explanation:

Xylem transports water in plants. Water is absorbed from the soil through root hair cells. Water moves by osmosis from one root cell to another until it reaches the xylem. It is transported through the xylem vessels up the stem to the leaves. It evaporates from the leaves (transpiration).

Global climate and weather patterns are driven by differences in the amount of heat energy in different areas of the Earth. Which statement best explains why different areas of the Earth have different amounts of heat energy?

Answers

The given question is incomplete as the options are missing. The options of the given question are as follows-

(A) The solar radiation from the Sun is equally distributed across the Earth at all times.

(B) The gravitational energy from the Sun varies greatly in different regions of the Earth.

(D) The Earth receives different amounts of solar energy in different regions.

Answer:

Option (D)

Explanation:

The earth receives uneven incoming solar radiation at different places, as a result of which some places are heated more extensively and some places are comparatively less cold. Due to this difference in temperature, along with the changing pressure conditions, and Coriolis effect, there occurs different climatic and weather patterns at different places.

The equatorial region receives the maximum amount of sunlight so, the temperature in this region remains comparatively higher throughout the year, and the polar regions are much colder. It is because the sun is directly incident on this layer.

So, there occurs a contrasting climate pattern globally that causes various changes on the surface of the earth.

Thus, the correct answer is option (D).

Answer:

The Earth receives different amounts of solar energy in different regions.

Explanation:

I got it right on Study island

What are the pros and cons of AREAIL WOLF HUNTING?

Answers

Pros:
1. It would keep the wolf population under control
2. Their prey's population will increase
Cons:
1. Their prey would become overpopulated from not being eaten
2. The wolf population might be endangered if people keep on hunting them.

not to mention that along the food chain, if that prey is taken out, the plant population, or whatever that animal eats, will also go down, resulting in possibly MANY threatening population drops.

The ratio between the force of sliding friction and the normal force of an object is called _____.-rolling friction
-the drag
-the coefficient of friction
-the starting friction

Answers

The ratio between the force of sliding friction and the normal force of an object is called THE DRAG

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A codon is made up ofA. a two-nucleotide sequence. B. a three-nucleotide sequence. C. a four-nucleotide sequence. D. a five-nucleotide sequence.

What was Rudolph Virchow’s contribution to the cell theory?

Each kernel of corn on a single ear can inherit a different set of alleles from those inherited by other kernels. This characteristic makes corn a useful example of which law or principle?