why do polygenic traits show bell curves in variation

Answers

Answer 1

Answer: because there are multiple genes that play a role in the phenotype, and each gene could have multiple alleles. This can give a range of possible phenotypes from all the variation that's coming into play here.


Related Questions

please help need asap

Answers

Answer:

The correct answer is C (The change of color allowed them to hide better from predators)

Explanation:

Before, the deer mice were easy prey for predators since their color stood out and the predators could find them. Therefore, the change of color allowed them to hide better from predators. You may be tempted to answer a, but if you read carefully it says "The change of color camouflaged them, which helped them HUNT better." Clearly A is wrong since deer mice don't really hunt.

What is the name of the play that Hamlet presents to King Claudius?

Answers

Answer:

The Mousetrap

Explanation:

In act 3, scene 2 of William Shakespeare's Hamlet, Claudius asks Hamlet for the play's title, to which Hamlet replies, The Mousetrap. He says that the play presents the true story of a murder carried out in Vienna.

Which RNA is directly responsible for catalyzing the peptide bond between amino acids during translation

Answers

Ribosomal RNA (rRNA) is directly responsible for catalyzing the peptide bond between amino acids during translation.

Who discovered mercury and what is your source?

Answers

Answer: Sumerians

Explanation: www.whodiscoveredit.com/who-discovered-mercury.html  

Answer:

Galileo Galilei first discovered mercury my source https://www.nhm.ac.uk/discover/planet-mercury.html#:~:text=Mercury%20is%20one%20of%20the,Galileo%20Galilei%20and%20Thomas%20Harriot.    that link

Explanation:

Hope di helps

You are attempting to carry out a transposon mutagenesis experiment using the pRL27 system. The Donor strain you use was giving to you by a lab mate who has been culturing it continuously for several months. When you set up your control plates, you find that the Donor strain grows poorly on Luria DAP Agar. Your transformation efficiency is very poor for this attempt at mutageneis. What likely happened to the Donor strain

Answers

The most likely happened to the donor strain is that the transposon is active in the donor resulting in the gradual accumulation of mutations. The accumulation of mutations is promoted by the insertion of the transposon.

A donor strain is a bacterial strain that contains a mobilizable fragment of DNA called plasmid.

These strains (donor strains) exploit the transference properties of a conjugative plasmid to modify a particular recipient strain.

Transposons, also known as jumping genes, are mobile genetic elements that alter the genome of an organism by jumping and thus inserting them into genetic sequences (i.e., into protein-coding sequences).

In this case, the presence of a transposon in the donor strain affected the expression of many genes required for the donor strain in order to grow into Luria DAP Agar.

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What are the most important benefits trees and fruit-bearing trees?​

Answers

Answer:

Trees give off oxygen that we need to breathe. Trees reduce the amount of storm water runoff, which reduces erosion and pollution in our waterways and may reduce the effects of flooding. Many species of wildlife depend on trees for habitat. Trees provide food, protection, and homes for many birds and mammals.

Explanation:

4) The end product of aerobic respiration are
(a) Energy ethanol and carbon IV oxde
(b) Carbon IV oxide (c) glucose alcohol
and energy (d) glucose water and energy

Answers

Answer:

The end products should be Carbon dioxide and Water.

Explanation:

Hope this helps.

below is a view at 1000x magnification of a gram stain of the cerebrospinal fluid. what type of white blood cell predominates in charlie’s csf?

Answers

The type of white blood cell that predominated in charlie's CSF is neutrophils.

Cerebrospinal fluid (CSF) is a transparent, colorless plasma ultrafiltrate with little protein and few cells. It is produced in the choroid plexus in the ventricular brain system.

The type of white blood cell that predominated in charlie's CSF is neutrophils. They are granular leucocytes, with active phagocytes. In the cytoplasm, there is the presence of neutral staining granules whose phagocytic activities are integral to subdue the invasion of pathogens.

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A body was found at 12:22am on April 19. The temperature of the
body when found was 94 degrees. What was the approximate time of death?

Answers

343883822828827382829

adventitious storage roots are seen in
a)Carrot
b)Sweet potato
c) Turnie
d)Radish​

Answers

Answer:

[tex]a)Carrot [/tex]

...............

Javier is going to construct a physical model of Earth. What is the correct order, from inside to outside, of earths layer?

A. Crust,mantle,outer core, inner core

D. Lithosphere, asthenosphere, mesosphere, outer core, and inner core

( those are the two choices I ended up with and don’t know which one it is)

Answers

Answer:

Its c

Explanation:

its defo c

Why does litmus paper go blue when ammonium hydroxide touches it

Answers

Litmus paper is an example of a pH indicator. A result of red means that the substance is acidic and blue means that the substance is alkaline.

Litmus paper goes blue what ammonium hydroxide touches it because ammonium hydroxide is alkaline

Hope this helps!

Approximately 3.85 billion years ago, a group of single-celled microorganisms known as __________ were alive, reproducing, and evolving.

Answers

Microbes.  — cells that have a nucleus, like an amoeba or a paramecium

who has a German shepherd? I want a dog and need some information form a dog owner.Plz help​

Answers

Answer:

That is the type of dog that police use to find drugs, look for people, etc.

Explanation:

Kinetic energy is described as

Question 1 options:

Decreasing energy


Stored energy


Elastic


Movement

Answers

Answer:

elastic

Explanation:

The kinetic energy of a body can be decreased in two cases: When it is stored in the form of potential, for example: elastic or gravitational energy. Or when there are dissipative forces capable of transforming it into other forms of energy, as does the friction force. Which transforms kinetic energy into thermal energy.

PA BRAINLIEST

HOPE IT HELPS

GOD BLESS

There are various types of energy in the surrounding. The different types of energy are as follows:-

Wind energyHeat energyLight energyWater energy

The energy formed by the motion of any particle in a random manner is called kinetic energy. The energy is stored in the particle of the matter.

Hence, according to the question, the correct answer is movement.

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Which of the following is a structure of the lower respiratory tract?

Answers

Answer:

c. Bronchioles

Explanation: is correct. post protected

In aerobic respiration, glucose and oxygen are used up and carbon dioxide, water and __________ are released. What one word completes the sentence?

Answers

Answer:

energy

Explanation:

aerobic respiration is the term for the chemical reactions in cells that use oxygen to break down nutrients molecules to release energy. The energy produced is 2830kJ of energy

Are large erganle melecules found in living things like proteins,
carbohydrates, nuclele acids and lipids

Answers

Answer:

YES THEY ARE FOUND

Explanation:

PLEASE HELP ME IM TIMED!

Answers

Answer:

Its Only, Oxygen, Nitrogen, and ammonia.

Explanation:

Hope that helped.

The spinal cord is associated with ____________ pairs of spinal nerves. Spinal nerves are considered

Answers

The spinal cord is associated with 31 pairs of spinal nerves. Spinal nerves are considered mixed nerves because they contain both motor and sensory axons.

where do photosynthetic organisms get the energy needed to make sugars during the light-independent/dark reactions?

Answers

Answer:

They use the glucose they have stored from previous photosynthesis reactions.

Explanation:

The dark reaction takes place external to the thylakoids. The energy from ATP and NADPH is used in this process to fix carbon dioxide (CO2).

What is light-independent/dark reactions?

Carbon fixation, reduction, and regeneration are the three stages that make up the Calvin cycle, which is another term for the dark reactions that take place during photosynthesis.

The stroma of the chloroplast is the location where the light-independent process, also known as dark reactions or the Calvin-Benson cycle, is carried out. Carbon-based molecules are formed through a chain of chemical events that begin with carbon dioxide. The production of ATP and NADPH during the light-dependent process supplies these processes with the energy they need to proceed.

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Analogous structures are evidence of ________. common ancestry divergent evolution stabilizing selection convergent evolution

Answers

Answer: Evidence of Evolution

Please, help! If you don't know, please don't give me the wrong answer.

Answers

Answer:

Option C

Explanation:

The hydrogen atom in the water bond to the hydrogen atoms in the air create a greater surface tension than most other liquid..

PLEASE MARK ME AS BRAINLIST

Answer:

C

Explanation:

unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole and a negative charge on the oxygen pole.

As the troponin changes shape (due to binding calcium), it moves the ______ molecule to which it is attached, thus exposing the active sites on the G-actin molecules.

Answers

As the troponin changes shape (due to binding calcium), it moves the tropomysin molecule to which it is attached.

Once calcium binds to troponin and causes it to change it shape, it removes the tropomysin away from the binding site therefore effectively exposing the myosin binding sites.

This occurs during muscle contraction (movement) in the skeletal muscles.

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Answer: tropomyosin

Explanation: just took a quiz :)

What is the thin-walled tube inferior to the uterus, anterior to the rectum, and posterior to the urethra and bladder

Answers

Answer:

The vagina

Explanation:

Compare morphological and bio-
chemical evidence supporting
evolution.

Answers

The morphological evidence which is shown in fossils to modern animals supports evolution because some dinosaurs, for instance, had feathers and we can obviously see that trait today in birds. The biochemical evidence, which comes in the form of DNA comparison and amino acid similarities, shows that we related closely to monkeys and pigs, which suggests that we have close ancestors to these animals.

Morphological evidence: Physical structures and traits indicate evolutionary relationships.

Biochemical evidence: Genetic and molecular similarities indicate evolutionary relationships.

Evolution is supported by morphological evidence. Scientists can establish evolutionary links by analysing species' anatomy. Homologous structures, which have a common origin but diverse functions, reflect a shared lineage. Comparative examinations of bone structure, limb arrangement, or body plans can reveal evolutionary links.

Biochemical data emphasises genetic and molecular similarities between organisms. Scientists may compare DNA, protein, and other substances at the molecular level. Common ancestry and evolution explain these commonalities. Comparing genetic sequences can show how closely related species are and when they evolved from a common ancestor.

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Cetaceans (whales, dolphins, and porpoises) are all Mammals. Whales usually are larger and slower in the water. Porpoises normally do not have a pronounced beak as a dolphin would. Dolphins have a curved dorsal fin. Dolphins and Porpoises are extremely intelligent. They are warm-blooded. All dolphins are whales, but not all whales are dolphins. Different animals live in different areas. Killer whales are adapted to colder areas, and they stay in the colder water. Bottlenose dolphins are best suited for warmer areas such as the Atlantic Ocean, so they will have less body fat or flubber because they live in a warmer climate. The Killer Whale will need more body fat because of the colder temperatures. They have smooth bodies to help them swim. They have tiny hairs, but as they age, the hair disappears. They can stay underwater longer based on their breathing and extract oxygen from water; they make super high pitch noises that Bounce off objects in the water Back towards the Dolphins to help determine the location; this is called Echolocation.

How does this diversity and adaptations differ from the diversity encountered on land?

Answers

Answer:

no worries no any answer

Explanation:

sorry I don't know about that

I am in class 8 only sorry

the united states national grid is based on the universal transverse marcator coordinayte system true or false

Answers

Answer:

true

Explanation:

Yah it’s true, USNG relies on the familiar Universal Transverse Mercator

How do turtles and cleaner fish benefit from their interactions

Answers

[tex] \: \: \: \: \: \: [/tex]

In a mutualistic relationship both organisms benefit from living closely together in a symbiotic relationship

example

Different fish nibble on old skin and small creatures such as parasites living on the sea turtle. The fish gets dinner, the turtle a free surface clean!

hope it helps

[tex] \: \: \: \: \: \: [/tex]

In a mutualistic relationship both organisms benefit from living closely together in a symbiotic relationship. We can for example observe this on cleaning stations. Different fish nibble on old skin and small creatures such as parasites living on the sea turtle. The fish gets dinner, the turtle a free surface clean!

What is the function of mitosis?
a) To produce four unique cells for sexual reproduction
b) To change one type of cell to another type of cell,
c) To heal a cell that has been damaged,
d) To produce two identical daughter cells to sustain an organism

Answers

Answer:

c

Explanation:

sorry if it's wrong but yea

Answer:

d

Explanation:

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