how is the law of mendelian inheritance violated in down's syndrome

Answers

Answer 1

Answer:

According to the Law of segregation presented by Mendel, each gamete receives just one copy of every allele randomly. Normally all the cells follow the Mendelian inheritance.

In Down's syndrome, an individual gets 3 copies of a chromosome instead of the normal chromosome pair. This is also known as trisomy 21. It does not follow the law of segregation of Mendelian inheritance as it gets three instead of two.


Related Questions

During what phase of meiosis does sister chromatids align at the equator?

Answers


During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells. Then in anaphase II, the chromosomes separate at the centromeres. The spindle fibers pull the separated chromosomes toward each pole of the cell.

Need Help ASAP plz will give Brianliest. Digestive juices contain enzymes, water and some
other substances. Name two of these other substances.
State which digestive juice contains them, and state
what function they perform.

Answers

Answer:

Hydrochloric acid  Prepares protein for  digestion  (denaturation)  Activates enzymes  and  “Disinfection”

Pepsin (an enzyme)  Begins protein  digestion

Gastric lipase  Some lipid digestion

Gastrin (hormone)  Stimulates gastric  secretion and  movement

Intrinsic factor (a  glycoprotein)  Needed for  absorption of vitamin  B12

Explanation:

Once homeostasis is reached, no changes or adjustments are needed because permanent balance has been reached

-true
-false​

Answers

Answer:

True

Explanation:

What is the function of the phloem?

Answers

Answer:

The phloem transport food which is synthesized in leaves by the process of photosynthesis to the lower part of the tree or plant.

hope it helps

1. Populations do not permanently remain at carrying capacity T/F

Answers

What’s the question

My main goal is to produce ATP energy

Answers

my main goal is to find my will to be alive

Answer:

mitochondria is my name

Explanation:

Biology

1 Explain the Diffrent Between aldose and Ketose monosaccharides

2 List All Liquids And Explain How They Foremd​

Answers

Answer:

1.Ketose and aldose are monosaccharides which can be differentiated based on the group they contain. An aldose is defined as a monosaccharide whose carbon skeleton has an aldehyde group. ... Ketose is a monosaccharide whose carbon skeleton has a ketone group.

Which method of genetic recombination is illustrated in the diagram?

Answers

Answer:

The correct answer is this one "independent assortment." Independent assortment refers to the formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes.

Explanation:

I wish This would be helpfull for you

What organisms are capable of photosynthesis?
A. Plants only
B. Plants and algae only
C. Plants and some bacteria only
D. Plants, algae, and some bacteria

Answers

Answer:

D) Plants, algae, and some bacteria

Explanation:

Photosynthetic organisms include plants, algae, euglena and bacteria

Diabetes mellitus is characterized by too much glucose buildup in the blood. In _________diabetes, this is because the target cells of the body become resistant to the effects of__________ insulin ; in later stages of this type of diabetes, the pancreas begins to fail as well. In type 2 diabetes, this is because there are a decreased number of_________ cells available to secrete insulin; this results in an insufficient amount of insulin to meet the demands of the body.

Answers

Answer:

The correct answer would be - Type 2, and beta respectively.

Explanation:

There are two types of two diabetes; type 1 and type 2. Type 2 daibetes is

When you have type 2 diabetes, your fat, liver, and muscle cells do not respond correctly to insulin. This is called insulin resistance. As a result, blood sugar does not get into these cells to be stored for energy.

HELP ME PLEASE ILL GIVE YOU POINTS AND BRAINLIEST

word bank :
methane
reemitted heat
reradiated heat
solar radiation
carbon dioxide

label the diagram

Answers

Answer:

A= Methane

B= Carbon Dioxide

C= Solar Radiation

D= reemitted heat

E = reradiated heat

Sauce me brainliest

During what phase of meiosis does non-sister chromatids align at the equator?

Answers

ooo i know this one its metaphase

You have isolated a new single gene mutation in zebrafish you call Casper because the mutant fish are clear (no pigments in the scales). You perform the following crosses: Cross Progeny Wild type X Casper 20 clear, 19 normal Casper X Casper 21 clear, 10 normal a. You notice that each cross produced a similar number of clear offspring but different number of normal offspring. What is going on here

Answers

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

In England, after the trees changed from light to dark, what happened to the color of
the moths over time?
More black moths than white moths appeared.
Grey moths developed.
The smoke stained the moths changing their color.
More white moths than black moths appeared.

Answers

Answer:

option A

Explanation:

is the correct answer of this question.

plz mark my answer as brainlist plzzzz.hope this will be helpful to you.

Answer:

I would have to say

A. More black moths than white moths appeared.

Explanation:

A black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat. And it was indeed an early discovery; black moths, strikingly different from the insect's usual mottled white.

3. If an engine exerts 250N of force and moves an object 6.0 meters, how much work did it do? 06
(1 Point)
O 0.024 J
C
42 J
O 41.6 J
O 1500 J

Answers

Answer:

1500J

Explanation:

work =force *distance

250*6=1500

The energy of an object due to its temperature is called
a. Temperature Energy
b. Thermometer
c. Thermal Energy
d. Chemical Energy

Answers

Answer:

C. Thermal energy.

The energy of an object due to its temperature is called Thermal energy.

a thick black cloth that forms a barrier to weeds and holds down erosion is called ?

Answers

Answer:

Landscape fabric, weed barrier and weed barrier fabric are names for the same product. It is a black mesh type of plastic that is used extensively in landscaping to keep weeds out of your garden.

Answer:

landscape fabric

Explanation:

It is a black mesh type of plastic that is used extensively in landscaping to keep weeds out of your garden.

Which part of the amino acid determines the uniqueness of the amino it as well as the shape of the protein

Answers

Answer:

The primary structure of a protein - its amino acid sequence - drives the folding and intermolecular bonding of the linear amino acid chain,which ultimately determines the protein 's unique three-dimensional shape.

I hope it's helpful!

1.The chemical equation for photosynthesis is 6CO2 + 12H20 + light energy= C6H1206 +602 + 6H2O
True
False

Answers

Answer:

False

Explanation:

It's this:

6CO₂ + 6H₂O + light energy ⇒ C₆H₁₂O₆ + 6O₂

If there were 12 H₂O molecules, the equation would be unbalanced.

Have a great day!

Two Scientists are discussing which two organisms are more closely related to each other. Scientist 1 proposes that the cow and dolphin are more closely related. Scientists 2 says that the frog and turtle are because they are both reptiles.

According to the chart above, which scientist is most likely correct?
Question 1 options:

Scientist 1 because the cow and dolphin share a more recent common ancestor


Scientists 2 because the frog and turtle share common food sources


Scientist 2 because shared characteristics are most important in determining relationships


Scientist 1 because the cow and dolphin both have live births

Answers

Answer:

cow and dolphin. D.

Explanation:

Why are all of us considered scientists to some extent?
O A. Everyone has questions about the natural world.
O B. Everyone writes and tests hypotheses.
O C. Everyone takes measurements and collects data.
O D. Everyone performs scientific experiments.

Answers

Answer:

A

Explanation:

well most of these are ture (Only due to school) the one answer that would apply to people outside of a school setting it A


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

producing crops that can grow in areas where they dont usually grow

Explanation:

PLEASE HELP ME WITH THIS

Answers

Answer:

more exposure to sunlight and therefore increase photosynthetic production

Explanation:

What do these do ?Endocrine Glands, hormones :

A. Transports nutrients and oxygen to the body, removes waste

B. Sends chemical messages for growth, reproduction, and
: Kidneys, bla energy processes

C. Filters the blood to removes toxins, excess water, and other
wastes

D. Works with skeletal system to procide movement, helps
digest food, pump heart, and move blood through veins
temperature, detects stimuli fro

E. Produces sex cells (sperm and ovum), nurtures and protects growing fertilizer egg

F. Provides support and structure to the body, stores minerals, produces blood cells, works with muscular system for movement

Answers

Answer:

F. Provides support and structure to the body, stores minerals, produces blood cells, works with muscular system for movement

What is the probability that the son is colorblind?

Answers

Answer:

I do believe 50 percent

Explanation:

You get traits from both mom and dad

If they have children with a man who is not color blind, then each daughter has a 50% chance of being a carrier and each son has a 50% chance of being color blind.

How can you tell the difference
between a plant cell and animal cell?

Answers

Answer:

I hope it helps you a lot!

:P

Explanation:

Answer:

Animal cell has no cell wall but plant cell has cell wall made of cellulose

Which action is necessary for a solar eclipse to occur?
The Moon needs to be full.
Earth needs to pass in front of the Sun.
The Sun needs to pass in front of the Moon.
The Moon needs to pass between Earth and the Sun.

Answers

The Moon need to pass between Earth and the Sun is the answer

Potential energy is
a. Stored energy
b. Energy in motion
c. kinetic energy
d. moving energy

Answers

potential energy is stored energy!!!!

What are the monomers of Carbohydrates?

A. Monosacharides
B. Nucleic Acids
C. Amino Acids
D. Fatty Acids

Answers

Explanation:

A. Monosacharides

....... from Greek

monos = single

sacchar = sugar

Label flower parts on it

Answers

Answer:

AntherFilamentStamenStigmaStyleOvaryPistilOvum/OvulePetalSepal

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Please answer the attachment! Thank you! What would you do if you were god for a day? In STU, u = 40 inches, S=73 and T=71. Find the length of t, to the nearest inch. what organelle ships proteins where they are need? What is the equation graph below? Although you are best known at school for being a competitive swimmer, you do an excellent jobcreating an intricate, interactive school project. Everyone is impressed with your skills. Your teachertells you that you are a real "Renaissance man." How would you interpret what a Renaissance manis?1. An individual who excels at art derived from the accent Greek and Roman time period.2. A person who start over in life by finding a rebirth in their job,careers, and/or studies.3. A person who believes we should return to a simpler time before technology took over.4. A well-rounded individual who is capable of excelling at a variety of tasks and skills. Which concept of urban design refers to the size of a building or structure in comparison to its surroundings?A. densityB. street designC. scaleD. landscape Help pls! I need help im just writing to use the character limit! 18 Which expression below is equivalent to -3x + 5(x + 2)? Circle thecorrect answer.A 2x + 2B.-x+ 2C 2x + 10D- 8x + 10Kaitlin chose A as the correct answer. How did she get that answer? GIVING BRAINLIEST!!! I'm really confused about this question is 7f=49 Br uh dont even type I cant see the pic Solve both problems and show ur work An experiment is designed to test what color of light will activate a photoelectric cell the best. The photocell is set in a circuit that "clicks" in response to current. The faster the current, the more clicks per minute. In this experiment, the number of clicks in one minute is recorded for each color of light shining on the photocell. To change the color of light, a different color of cellophane is placed over the same flashlight and the flashlight is then located a specific distance from the photocell.Which of the following was not kept constant?the color of the light after it has passed through the cellophanethe source of the original lightthe distance of the light from the photocellthe test for photocell activation help please will give brainliest What is the lack of exploration by the Europeans led to Africa being referred as? PLS HELP!!! DUE SOON Points p(3,0) and q(-3,4) are on the line ax+by=6 find a and b Write each fraction as an expression using a negative exponent other than -1. 3. 1 ___________ 4 24. 1 ___________ 100 The slope is 2.92, which shows a positive relationship because it is a positive number. Thelonger a persons hair, the more it will cost to get the hair highlighted. This makes sense, asmore product is required to highlight more hair. What was France's economic weakness in the 1900s?