Over the last several decades, the scientific community has gathered a large amount of information regarding genetics and genetic variation. What is a main source that leads to increased genetic variation?

Answers

Answer 1

Answer:

the answer is Recombination :)

Explanation:

(i just took the test so i know its right)


Related Questions

Explain why an egg is much larger then the sperm cell

Answers

Answer:

Egg cells are larger than sperm cells because they carry Cytoplasm and Organelles for  cell division and growth to start while the sperm  cells are basically a cell Nucleus and a tail.  

Hope  this helps!

Have a wonderful day!

Answer:

Egg is larger than sperm as it has been structured like that

HELLO PLS HELP QUICK!THX!
which landform is created by deposition?
A-alluvial fan
B-glacial valley
C-cave
D-river channel

Answers

Answer:

c

Explanation:

Answer:

I would say glacial valley thats my guess I hope you find the anwser I'm trying to get mine to lol

Which tropism causes the roots of seedlings to grow downward?

Answers

Answer:

geotropism

Explanation:

they go towards the gravitational force

Ans this question I’ll make u a brainliest !!

Answers

the second one. and ur wely

What is the conclusion that Morgan concluded from his
experiment using the fruit flies?

Answers

Answer:

What is the conclusion that Morgan concluded from his

experiment using the fruit flies?

10. What do limiting factors control?
A.the size of an organism
B.the size of an ecosystem
C.the size of a habitat
D.the size of a population

Answers

Answer:

D.the size of a population

Explanation:

Hope I am right

HELP ASAP!!!!!!! PLEASE HELPPP!!

Answers

Answer:

the answer is the second one so you are correct

Explanation:

Answer:

the energy stored in atmospheric carbon dioxide is cons of because it is transformed into glucose during photosynthesis.

as Co2 is taken by plants to form glucose during photosynthesis.

What statement best describes the role of DNA in protein synthesis?
DNA forms the structural parts of the ribosomes

DNA joins the chains of amino acids to form a protein

DNA carries the amino acids to the ribosome during translation

DNA contains the code for the order of amino acids in proteins

Answers

Answer:

D

Explanation:

DNA is transcribed onto a mRNA and is used in ribosomes to contact tRNA to bring amino acids to the ribsome.

In some deserts, the air temperature can change over 60 to 70 degrees in a single day. Which of these properties
would allow humans to survive in an environment that has such drastic changes in temperature?
Eliminate
A)
cold bloodedness
being endothermic
being ectothermic
being photosynthetic

Answers

Answer:

Being endothermic

Explanation:

Humans are not cold-blooded and we don't photosynthesise so only the second option applies to humans;

We produce heat internally within our bodies so we are endotherms, i.e. warm-blooded;

We shiver and have thermogenesis through metabolism to generate heat to keep body temp up and also sweating and physiological mechanisms to cool out bodies down.

Patterns of inheritance within organisms like pea plants, fruit flies, mice, and others are somewhat easy to determine since their mating practices can easily be controlled. Apart from controlling who mates with whom, what other characteristics make species like these ideal for studying genetics?

Answers

Answer: Due to following reasons these organisms are useful for studying genetics.

Explanation:

These organisms offer following characteristics which help in understanding the inheritance pattern in living organisms:

1. They allow which traits can be inherited from the parents to the offsprings.

2. These organisms are easy to grow and cultured.

3. These organisms can bred rapidly and can show many observable characteristics.

PLS PLS PLS PLS PLS HELP!!!!! Instead of allowing 1 kg of U-235 to decay naturally, imagine it is used as fuel in a nuclear reactor. It is bombarded with neutrons, causing it all to fission in a matter of days. After 1 kg of U-235 undergoes fission, the mass of the products is 8.4 x 10-4 kg less than the initial 1 kg. How much energy was produced by the fission of 1 kg of U-235? (Hint: Use Einstein's equation, E = mc2, where E is energy in Joules, m is mass in kilograms, and c is the speed of light, 3 x 108 m/s.) (8 points)

Answers

Answer: Uranium-235 is a popular choice of fuel for nuclear reactors. ... Instead of allowing 1 kg of U-235 to decay naturally, imagine it is used as fuel in a nuclear > reactor. It is bombarded with neutrons, causing it all to fission in a matter of days. ... U-235 undergoes fission, the mass of the products is 8.4 x 10-4 kg ...

The first nuclear reactor to achieve controlled nuclear disintegration was built in the ... The nuclear reactions presently used or studied by the nuclear power industry ... In nuclear fission a large nucleus is split into two medium-sized nuclei. ... About 5600 tons (5.1 X 106 kg) of coal are required to produce the same amount of ...

Explanation:

U BETTER MARK ME MOST BRAINLIEST FOR HELPING U PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS

Activity 1: Punnett Square - Dog

Complete the Punnett square. A dog with dominant black hair (Bb) is bred with a dog with brown hair (bb).

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[][][]
[][][]

Answer the questions below.

a. What is the probability of a puppy being black or brown?

b. Which dog is heterozygous for hair color?


Activity 2: Punnett Square - Cat


Complete the Punnett square for a dihybrid cross of a new type of cat: PpRr (mother) x ppRr (father)

Where P is dominant for pink fur and p is recessive for purple fur. R is dominant for green nose and r is recessive for blue nose.

[][][][][]
[][][][][]
[][][][][]
[][][][][]
[][][][][]

Answer the questions below.

a. What traits does the mother cat have?

b. What traits does the father cat have?

c. What is the probability a kitten will have pink fur and a blue nose?

d. What is the probability a kitten will have purple fur and a green nose?

e. Are the kittens more likely to look like the mother or the father?

Answers

Answer:

1

A 2/4 or 50% chance of a black puppy and a 2/4 or 50% chance of a brown puppy

B the black dog is heterozygous

Explanation:

only the first part

HELP PLZ 15 POINTS AND BRAINLIEST
Do you think research on inhospitable plants can help botanists in other industries? Explain your answer.

Answers

Yes because botanist in other industries

Answer:

These plants grow in very difficult environments. So, researching their genes may help botanists working in agricultural areas develop crops that can grow in inhospitable areas. Also, understanding how these plants survive in harsh conditions may help conservation scientists protect plants if their environments change.

Explanation:

HELP WILL GIVE BRAINLIEST A scientist is studying a new species of bird found in the Amazon. She suspects that it is demonstrating a
Mendelian trait with the shape of its beak. When she runs her observed numbers with what would be expected,
she gets a chi-square value of 6.23. Can she support her Null hypothesis? (After saying yes or no, explain why).

Answers

Bro this is so confusing hold up ill get my freind to help u

Someone please help me with this answer it’s TIMED

Answers

Answer:

The answer is the second one.

Aa and Bb has a 25% chance of making an AB, a 50% chance of making an Ab or aB, and a 25% chance of making an ab

Answer:

Good job on your test!!! :)))))

Who is the man known to be responsible for the five basic rules of genetics?
Oliver Mendel
Gregor Mendel
O Gregor Mandela
O Ivan Pavlov

Answers

Answer:

Gregor Mendel

Explanation:

Just search it up lol

Please help and give the correct answer I really need it a lot

A sugar cube is placed in a 250mL beaker filled with 200mL of water. An equal amount of
granulated sugar is placed in a beaker also filled with 200mL of water. The contents of each
beaker are stirred. Which type of sugar dissolves more quickly? Explain why.

Answers

Answer:

gracias por los puntos

Explanation:

Which reaction is taking place between 1 and 3 (Look at picture)

- ammonification
- glycolysis
- photosynthesis
- respiration

Answers

Answer: respiration

Explanation:

The process of photosynthesis is taking place between the pictures 1 and 3 as these require carbon dioxide and water molecules in the presence of light energy to produce glucose molecules and oxygen gas. Thus, the correct option is C.

What is Photosynthesis?

Photosynthesis is the process in which the light energy is trapped by chlorophyll of the leaves and other green parts of the plant body to convert the carbon dioxide and water molecules to produce food in the form of glucose (carbohydrate). Glucose is produced in the plants where chlorophyll is present inside the chloroplast organelle as trapping the solar energy initiates the process of photosynthesis.

Photosynthesis occurs in the plant cells because they contain chloroplast. This process involves the conversion of light or solar energy into chemical energy that is glucose molecules.

Therefore, the correct option is C.

Learn more about Photosynthesis here:

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Please help I need it done fast I will give brainliest if right

Answers

Answer:

turgor pressure

Explanation:

brainliest plz

Which best provides evidence of gravity acting as a centripetal force?



A.A force that makes objects move in elliptical paths around the sun


B.the point in an object’s orbit at which the object is closest to the sun


C.the path that a body follows as it travels around another body in space


D.the point in an object’s orbit at which the object is farthest from the sun

Answers

i think the correct answer is A





please let me know if i was right :)))

Please answer the photo is above thank you.

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Answer: the first box is recessive, other three are dominant. the first and third of the second row are heterogeneous and the second and fourth are homogeneous. first and fourth one of the third row are homogeneous dominant, the second one is heterogeneous, the third one is homogeneous recessive. of the fourth row, it goes; purple, purple and white, and white. for the last question the possible genotypes are BB, BB on top, Bb, Bb, on bottom. The phenotype can be black and grey or black and black and white spotted. the percent chance is 50% for both and 1:1

Explanation:

In chlorophyll b functional group is?

Answers

Answer:

Aldehyde group

Explanation:

The two chlorophylls differ only at position 3 (ring B): chlorophyll a contains a methyl group at this position, whereas chlorophyll b contains an aldehyde group (1).

What produced the elements heavier than helium (He) but lighter than iron (Fe)?

Answers

nuclear fusion within stars i’m pretty sure

Natural gas is
A) fossil fuel
B) not a real source of energy
C) renewable energy source

Answers

Answer:

A. Fossil fuel

Explanation:

Natural gas is also called fossil gas

Answer:

A) Fossil Fuel

Explanation:

It IS a real source of energy. Most of what you probably have is thanks to fossil fuels. It is non-renewable, as it takes thousands of years to be created.

Why do nations have embassies?​

Answers

Answer:

To improve relations between nations.

Explanation:

Embassies are usually signs of good diplomatic relations between two countries. They are established with the consent of both countries, and are used for citizens that have citizenship in the country that established the embassy.

Hope this helps! :)

Answer:

The primary purpose of an embassy is to assist citizens who travel to or live in the host country.

Explanation:

Enzymes are proteins that make reactions happen __________
Enzymes are a type of protein. Like other proteins, they are made of small building blocks called _________ ________ .
if any helps me gets a brainllest

Answers

The first blank:faster
Second blanks: amino acids

Lysosomes digest food particles brought into a cell by endocytosis. After a vesicle containing food particles fuses with a lysosome, H+ ions are transported into the lysosome from the cytosol. This significantly lowers the pH of the lysosome relative to the cytosol and activates the enzymes that digest the particles.

Which of the following best predicts what will happen to the lysosomal enzymes if the proteins that transport H+ ions from the cytosol into the lysosome are damaged?

Answers

Lysosomes are acidic compartments filled with more than 60 different types of hydrolases. They mediate the degradation of extracellular particles from endocytosis and of intracellular components from autophagy. The digested products are transported out of the lysosome via specific catabolite exporters or via vesicular membrane trafficking. Lysosomes also contain more than 50 membrane proteins and are equipped with the machinery to sense nutrient availability, which determines the distribution, number, size, and activity of lysosomes to control the specificity of cargo flux and timing (the initiation and termination) of degradation. Defects in degradation, export, or trafficking result in lysosomal dysfunction and lysosomal storage diseases (LSDs). Lysosomal channels and transporters mediate ion flux across perimeter membranes to regulate lysosomal ion homeostasis, membrane potential, catabolite export, membrane trafficking, and nutrient sensing. Dysregulation of lysosomal channels underlies the pathogenesis of many LSDs and possibly that of metabolic and common neurodegenerative diseases




Hope this helps :)

There are more than 60 different types of hydrolases inside the acidic compartments known as lysosomes. They control the endocytosis-mediated destruction of extracellular particles.

What is the function of Lysosomes?

An organelle of a cell that is membrane-bound and houses digestive enzymes is called a lysosome. Numerous cell processes involve lysosomes.

They disassemble extra or worn-out cell components. They could be utilized to eliminate invasive bacteria and viruses.

In the digestive system of the cell, lysosomes break down materials taken in from the outside, as well as any unnecessary cell components.

Therefore, considering that there won't be any active transport of H+ ions, the lysosomal enzymes won't become active.

Learn more about Lysosomes here:

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Which characteristic is shared by all arthropods?


All arthropods live on land.


All arthropods are insects.


All arthropods have exoskeletons.


All arthropods have six legs.

Answers

Answer:

The answer would be C:

All arthropods have exoskeletons.

this type of asexual reproduction is primarily used by bacteria, where the organism splits in half

Answers

Answer:

Binary Fision

Explanation:

Fission, in biology, is the division of a single entity into two or more parts and the regeneration of those parts to separate entities resembling the original. The object experiencing fission is usually a cell, but the term may also refer to how organisms, bodies, populations, or species split into discrete parts.

Parent
species
The diagram above shows the beaks of five species of birds that developed over time from one parent species. The five species of birds can be
found living in the same area.
Which of the following best explains why the beak shape of each species of bird developed differently?

I need help ASAP

Answers

Answer: to best help them aid in what the need to live like the small and thin beak is good for digging in small and thin holes for worms

Explanation:

Answer:

B

Explanation:

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