Down's syndrome is a condition where an extra chromosome is produced on the _____ chromosome.

Answers

Answer 1

Answer: On the Y chromosome

Answer 2

Answer: 21th

Explanation: Down syndrome a.k.a trisomy 21 because it’s caused by an extra copy of a chromosome 21.

Hope easy and helps! ^^


Related Questions

One plant has the genotype BB. The second plant has the genotype Bb. The two plants would

Answers

Answer:

C bc tht are show tht same

(GIVING BRAINLIEST!!!!)

Answers

Answer:

it's definitely saturn and jupiter

What is Earth's atmosphere made of?​

Answers

Answer:

Explanation:

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent

Which of the following explains why an apple looks red? The apple reflects red light and absorbs all other visible wavelengths. The apple absorbs red light, and reflects all other colors of light.. The apple is absorbs all visible wavelengths, but absorbs red light better The apple is reflects all light that hits its surface.​

Answers

Answer:

The apple reflects red light and absorbs all other visible wavelengths

Explanation:

The apple is only reflecting the color red and is absorbing the other colors of light (wavelengths)

The correct explanation why an apple looks red is that the apple reflects red light and absorbs all the other visible wavelengths. Thus, the correct option is A.

What is Absorption and reflection of light?

Light absorption is the process in which the light ray is absorbed by the matter and converted into a form of energy. In an atom, the electrons vibrate at a specific frequency, then this is called as the natural frequency.

Reflection is a phenomenon of light. When a ray of light approaches a smooth polished surface such as metal and the light ray bounces back, it is called the reflection of light. The incident light ray which land on the surface is reflected off from the surface. The light ray that bounces back is called the reflected ray.

Therefore, the correct option is A.

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what is imunisition



please help me guys ​

Answers

Hey There!_____________________________________Answer:_____________________________________

[tex]\Large\textbf{ACTIVE AND PASSIVE IMMUNITY}[/tex]

Active Immunity, Immunity which is acquired by the own immune response of the body.

Passive Immunity, Immunity which is acquired and dependent upon the antibodies transported from another person or even an animal. A person's immune system does not acquire or make the antibodies itself. A newborn baby acquires passive immunity from its mother through the placenta.

                            x---------------------------------------------------x

[tex]\Huge\text{Vaccination:}[/tex]

Vaccination is a artificial active immunity. Artificial because the antibodies are not acquired by any natural infection but it is injected into the healthy body of the person. It is Active immunity because the body does not get already made (from other animal) antibodies but it acts on the small amount of the pathogen which is injected in the body and acquires the antibodies itself. So the person acquires antibodies naturally acting on the antigen. Antigen is any foreign agent which triggers the immune system to produce antibodies against it. Vaccines contains antigen which is a harmless form of the bacteria or a virus that causes the disease you are being immunised against. The bacteria or virus are in small proportion and greatly weakened in the vaccine so they just trigger an immune response without causing any real damage. When Vaccine is injected in the body, the immune system starts to make antibodies of different forms against the antigen(Virus or bacteria in the vaccine). When the appropriate shape antibody reacts with the antigen and forms antibody-antigen complex which destroys the antigen. This means that type and shape of antibody is perfect to work against that antigen, then the immune system start forming only those kind of antibodies in great proportion and the Person gets immunised by the vaccine in a natural way.

_____________________________________Best Regards,'Borz'

Let’s say you breed a purple flower and a white flower.
What color(s) do you think the offspring will be? Why?

Answers

Answer:

Purple because its a dominant trait

Explanation:

Answer:

light purple or purple like the purple flower

Explanation:

What part of the microscope is used to move an objective lens into place?

Answers

Answer:

The ocular micrometer has no units. Revolving Nose Piece - Several objective lenses of varying magnification and numerical aperture are mounted on the revolving nosepiece. The nosepiece must click into place for the objective lens to be in proper alignment.

What did Bill climb to get out of the Nye Lab?

Answers

Answer:I think it is A DNA molecule 5

sorry if I am wrong

   

Answer:

DNA

Explanation:

i think

why is kidney cell different from other cells in your body ? what role do stem cells play?

Answers

Answer:

1. Cells have different shapes because they do different things. Each cell type has its own role to play in helping our bodies to work properly, and their shapes help them carry out these roles effectively. The following cell types all have unusual shapes that are important for their function. 2. Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells

Explanation:

Kidney cell is different from other cells in your body such that they are

involved in the following functions due to unique structures and

mechanisms present.

FiltrationIon homeostasisBlood pressure control.

Stem cells are majorly involved in the repair of body cells and tissues

during injuries or when worn-out. This is as a result of them having the

ability to become specialized.

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A forest fire caused by lightening destroys an entire forest. The population of deer was drastically reduced within the forest leading to a decrease in genetic variation. This situation is an example of -

Mutations
Gene Flow
O Genetic Drift
Divergent evolution​

Answers

Answer:

I'm like 90% sure that it is Gene flow

Explanation:

When humans burn fossil fuels, ________________ is released back into the atmosphere.

Answers

Answer:

Carbon Dioxide

Explanation:

Answer:

Carbon Dioxide

what happens to cells that do not take up the recombinant plasmid​

Answers

Explanation:

they are not transformed , and they die soon after they are still transfo4med because the nearby cells are transformed they change to a new cell with new characteristics. THEY ARE NOT TRANSFORMED AND THEIR CHARACTERISTICS ARE NIT ALTERED


Help plz and can you plz use the key terms

Answers

Answer:

srry im not in this unit yet

SpongeBob and his pal Patrick love to go jellyfishing at Jellyfish Fields! The fields are home to a special type of green jellyfish known as Goobers and only really great jellyfishermen are lucky enough to catch some on every trip. Many of the jellyfish are yellow (BB) or blue (bb), but some end up green as a result of incomplete dominance. What would happen if SpongeBob and Patrick crossed two "goobers” or green jellyfish? Complete the Punnett square to help you determine the probability for each color of jellyfish. What percentage would be "goobers" (green)? 0% 25% 50% 100%​

Answers

The  Punnett square to help you determine the probability for each color of jellyfish percentage would be "goobers" are 50%.

What is the goobers?

Goobers is a slang term used to refer to someone who is naive or foolish. It can be used to describe a person who is easily taken advantage of or someone who is generally inept. Goobers are often seen as endearing and often have an innocent quality about them. They are also often seen as lacking in common sense and understanding of the world around them.

BB BB BB BB

bb bb bb bb

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If the phenotype is much more common in males, then the gene is likely on the?

A.autosomal chromosome
B. X chromosome

Answers

A. autosomal chromosome

The appearance of free oxygen in the earths atmosphere led to the "great oxidation event" where did all of this oxygen come from

Answers

Answer:

So there's a simple explanation for the Great Oxidation Event. It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere. ... That means the cyanobacteria were busy pumping out oxygen for at least half a billion years before oxygen started appearing in the air.

Explanation:

A black hybrid rabbit is crossed with a white purebred rabbit.

What is the probability of an offspring being black?
A. 25%
B. 50%
C. 75%

Answers

Answer

A. 25%

Explanation:

This is because the black hybrid would be 50% one breed and 50% another breed. Then the white purebred is 100% one specific breed. So by mating, all of those breeds that the parents have all reduce by 1/2 for the offspring.

25% I’m pretty sure :)

in which direction is the wind likely to blow in this picture

a. from the ocean to the Moon
b. from the land to the ocean
c. from the ocean to the land
d. from the moon to the ocean

Answers

i think the answer is B

In eukaryotic cells, DNA is packaged with proteins into structures called
chromosomes. What advantage do chromosomes provide the cell?
a. They ensure equal division of genetic material when a cell divides.
b. They allow random distribution of genetic material when a cell divides.
c. They allow all genes to be expressed at the same time.
d. They eliminate the need for a nuclear membrane.

Answers

Answer:

A

Explanation:

The Earth’s atmosphere consists of a combination of gases. Scientists believe that we are creating air pollution, which causes an increase in some gases, such as carbon dioxide. Such increases make it difficult for the atmosphere to stay in balance, and heat radiating from the Earth is being trapped. What term refers to the sun’s energy being trapped in our atmosphere?

A) cumulus clouds


B) greenhouse effect


C) transpiration


D) convection

And I need an explanation

Answers

Answer:im guessing its the greenhouse effect

Explanation:The Earth's atmosphere is composed of Nitrogen (78%), Oxygen (21%), and other gases (1%). ... Due to increases in gases, like carbon dioxide, that trap heat being radiated from the Earth, scientists believe that the atmosphere is having trouble staying in balance creating the greenhouse effect

Which behavioural adaptation was shown by butterfly"
A. Mimicry
B.predation
C. Protection
D.camouflage

Answers

A. Mimicry and protection

Diarrhea is defined by loose, watery stool (poop.) Diarrheal diseases kill millions of people worldwide every year. Describe how a diarrheal disease might lead to death.

Answers

Answer:

dehydration.

Explanation:

the body is loosing more fluid than it is able to keep in and extreme cases result in death

Which two parts of sedimentary rocks formation include the breakdown and carrying away of existing rock

Answers

Answer:

weathering

erosion

Explanation:

Weathering can be explained as the

breaking down of rocks as well as minerals or dissolving it on the surface of the earth. After the rock has been broken down then the bits of the rock can be transported away in a process known as " Erosion". The agents of

weathering and erosion could be water, salt, animal as well as plants.

It should be noted that the parts of sedimentary rocks formation that include the breakdown is weathering while the parts of sedimentary rocks formation that include carrying away of existing rock is erosion.

Answer:

weathering

and

erosion

How can people evaluate risks from chemical hazards?

Answers

Answer:

how it behaves in certain environments, temperatures and when mixed with other substances must be assessed against conditions in the workplace to determine risk

Explanation:

Why is the Krebs cycle so important in metabolism?

Answers

Answer:

I’m not sure but its because it’s mister crabsssss hayayhaha

Explanation:

Jkjk anyways it’s important in the metabolism because it’s the MAIN source of energy for the cells and it’s also important in the aerobic respiration,

Because the Krebs cycle is the main source of energy for our cells and it is also an important part of aerobic respiration.

Does natural selection affect humans? How and why

Answers

Answer:

Yes it does affect humans.

Explanation:

Natural selection acts on the phenotype, but evolution is a change in the frequency of alleles in a population over time, a change in genotype. So natural selection acts on phenotype, but it is the connection to genotype that makes it the mechanism of evolution. Many traits vary among different members of a population of humans and animals, from body size to hair color, and those differences are often linked to differences in genes. Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. In scientific terms, these hazards are referred to as selection pressures. They put pressure on us to adapt in order to survive the environment we are in and reproduce. It is selection pressure that drives natural selection "survival of the fittest" and it is how we evolved into the species we are today.

What number of cells is in metaphase

Answers

there is only one cell

Answer:

1

Explanation:

The cell doesn't split until telophase, so there's still only one during metaphase. Chromosomes are still lining up during this phase.

What is the most likely cause of tuberculosis?

A. It is caused by taking a certain drug

B. It is caused by poor nutrition

C. It is caused by a type of bacteria

D. It is caused by a type of virus

Answers

Answer:

I think the answer is C but aia could be wrong

Explanation:

brainliest plz

WILL MARK AS BRAINLIEST!!!!!

Describe the levels of organization in the body.

Thank you! I will also try to answer some questions if someone answers :)

Answers

Answer: The six levels of organization in the body are: chemical, cellular, tissue, organ, organ system, organism.

Explanation: Hope this helps!

Answer is there are how many organs and that we need all of them besides 1

Please help!!!!!!!! Will mark brianlist ASAP

Answers

I'm going with C. It may be wrong but I think it's C.

Answer:

the answer is D.........

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