Genetics

This section covers topics of genetics such as variation, pedigrees, Mendelian genetics and mutations.

199,708 Questions
Genetics

From the capillaries of the abdominal organs and hind limbs blood flows to the?

feet

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Biology
Genetics
Blood

What does DNA stand for?

DNA is an acronym that stands for Deoxyribonucleic acid. It is found in the nucleus of a cell. It is the genetic code for all living life forms.

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Genealogy
Genetics
Adolf Hitler

Who were the Aryans?

The aryans were a slavic people from the caucus mountins, they expanded throughout europe and asia. all people from ireland to india have a similar language that directly goes back to the aryans language.

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Microbiology
Genetics
Blood Types

What is the rarest blood type?

It really does depend on the population in the U.S. but it has been stated that the rarest blood type is AB-. This is according to the American Red Cross

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Conditions and Diseases
Pediatric Conditions and Diseases
Genetics

What is galactosemia?

1. classic galactosemia

2. duarte galactosemia is a mild variant of classic galactosemia

3. galactose epimerase deficiency Other Names: UDP-Galactose-4-epimerase deficiency; GALE deficiency; Galactosemia 3; Epimerase deficiency galactosemia; Galactosemia type 3; GALE-D; Uridine diphosphate galactose-4-epimerase deficiency. is A very rare, moderate to severe form of galactosemia characterized by moderate to severe signs of impaired galactose metabolism. The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 79238

4. Galactokinase deficiency. Other Names: GALK deficiency; Galactosemia 2; Hereditary galactokinase deficiency; Galactokinase deficiency galactosemia; GALK-D; Galactosemia type 2. Galactokinase deficiency (GALK), a mild type of galactosemia

type# form/name:

1. classic| severe

4. galactose epimerase deficiency| modrate/severe

2. galactokinase deficiency| mild

3. duarte Galactosemia| mild/severe

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Eyes
Genetics

How rare is black hair and blue eyes?

The occurrence of crossing over those two genes is more rare because they are farther apart on the chromosome than dark hair and dark eyes or light hair and light eyes; dark hair and light eyes are about as uncommon as light hair and dark eyes. Depending on the area of the world, it can be either very common or very uncommon. In some areas, like Ireland, it can be more common because when there are more people with that combination of genes procreating, it is more likely for the child to have dark hair and light eyes.

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Banking
Biology
Genetics
Biotechnology

What are some benefits of DNA data banks?

Hepatocytes cultured in a three-dimensional environment using bioreactors, hanging drop methods, collagen sandwich cultures, micro-space cultures, collagen and matrigel cultures, and other synthetic biomaterials have been shown to be tissue-specific and possess many hallmarks of in vivo epithelial cells.

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Genetics
Philippines
Philippines Health
Paternity

How much is the DNA test in the Philippines?

It costs between 12 and 15 thousand dollars. For 1 father and 1 child, it costs $15,000, with or without the mother's DNA.

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Science
Biology
Genetics
Biotechnology

What is the GC content of a human genome?

turnsturnsturnsturns

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Biology
Botany or Plant Biology
Genetics

What is the main difference between plant and animal cells?

  1. Plants cells have a cell wall over the cell membrane,whereas,animals cells lack cell wall.
  2. In plant cells, there is a single large vacuole present in the middle, whereas, in animals cell,there are more than one vacuoles.
  3. Plant cells possess plastids, but, animal cells don't.
  4. Animal cells have centrioles, whereas, plant cells don't.
  5. Plant cells are more square shaped, animal cells are more round
  6. Plant cells have chlorophyll for Photosynthesis (make their own food), and animal cells don't
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Academic Writing
Botany or Plant Biology
Genetics
PayPal

How do green plants make sugar?

by process of photosynthesis

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Biology
Microbiology
Genetics

What sugar is found in DNA and RNA?

Ribose is found in RNA

Deoxyribose is found in DNA

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Biology
Genetics
Biochemistry

What is test tube skin?

Short Answer is: It is skin in / and from / a test tube. What else ... would you need: Q'n.

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Genetics
Biochemistry

What is the equation for oxidative phosphorylation?

3ADP + 3Pi + NADH + H+ +1/2O2 ----> 3ATP +NAD+ + H20

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Miscellaneous
Biology
Genetics

How is a test cross set up?

Organism to be tested is crossed with a homozygous recessive . If all progeny is similar to tested organism , it is homozygous and if 50% progeny is similar to tested organism , it is heterozygous .Classic Mendelian example is cross of a tall plant to check its genetic make up by crossing with homozygous recessive dwarf plant .

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Biology
Genetics

Is a carrier homozygous or heterozygous?

A carrier would have to by heterozygous. Carriers don't express the "carried" allele but have it nevertheless. This means it has to have one allele of each. For example, if a trait has alleles A (dominant) and a (recessive), the heterozygous genotype will be Aa and will display the dominant phenotype (unless the trait is a special/more complex type of expression like incomplete dominance).

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Microbiology
Genetics

Where are bacterial chromosomes located?

In the nucleoid region.

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Laboratory Testing
Genetics
Blood Types

Can an O positive woman and O negative man have a healthy baby?

Yes, the blood type does not affect the baby.

The information provided does not predict any major incompatibilities between the mother and the child during pregnancy. However, the ABO and the Rh factor are only part of the prenatal care picture. There are many, lesser known, blood groups that could cause HDFN (Hemolytic Disease of the Fetus or Newborn).

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Genetics

What are the three stages of cell communication?

Reception

Transduction

Response

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Biology
Genetics
Biochemistry

Why is a buffer needed in gel electrophoresis?

The buffer is the medium through which the current flows. In the electrophoresis chamber, the anode and cathode are separated and the gel is placed between them. In order to close the circuit and generate the voltage which causes the migration, the entire chamber is filled with a conductive buffer. It is actually possible to perform electrophoresis without a buffer; however this requires a specially made electrophoresis chamber. In these chambers the electrodes actually contact the top and bottom of the gel eliminating the need for a conductive buffer to close the circuit.

SDS PAGE electrophoresis uses buffer not primarily as a conductor but for holding a desired pH, dissipating heat and providing SDS in excess in the case of denaturing gels. A gel would run without a buffer as the gel itself is a conductor but the currents involved would heat it to the point of decomposition. Also the volume of liquid in a gel does not allow for an adequate pH buffering system. Holding a pH is extremely important for reproducibility especially in native gels as the pH can change the charge on the peptide. It is true some gels do not require buffer but these are rare cases like isoelectric focusing.
the primary application of the buffer would be to conduct electricity,to form a closed circuit

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Genetics

Do vitamins affect those who take them?

Every year we spend £300 million on vitamin supplements. Some believe they offer the promise of preventing or even curing some of the world's biggest killers, such as heart disease and cancer. Others claim that taking large doses of some vitamins may in certain cases be harmful.

Vitamin C, the most popular of them all

Nearly 40 years ago, one of the greatest scientists of the 20th century and double Nobel Prize winner, Linus Pauling, revolutionised the way people thought about vitamins. He claimed that by taking huge doses of vitamin C you could prevent or even cure the common cold.

He predicted that if everybody followed his advice, the common cold could even be eradicated. Many scientists dismissed his theory as quackery, but the public loved it and it helped launch a huge industry. But the latest evidence shows the great man was mistaken. Vitamin C can help you once have got a cold, but for most people it does nothing to prevent you from catching one in the first place.

Even if large doses of vitamin C do not prevent the common cold, some claim that it can still offer a more profound benefit. It is one of a group of vitamins called anti-oxidants that some believe can prevent illnesses such as cancer, Alzheimer's and heart disease.

Too much of a good thing?

In 2004, scientists in the United States claimed that people could be missing any of the potential benefits of taking one of the world's most popular anti-oxidant vitamin supplements, vitamin E, because their bodies might not be absorbing it. But our own investigation suggested that the American scientists' conclusion could be mistaken.

While most safety experts believe that vitamins C and E can be taken safely even in quite large doses, there is worrying evidence that one form of another common vitamin, vitamin A, could be linked to osteoporosis, a debilitating bone disease.

If the theory is right it means that a person's diet, or some supplements that they take every day to improve their health, could actually be slowly and silently weakening their bones.

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Genetics
Blood Types
Circulatory System

Which blood group has no antigen?

O negative does not contain antigen.

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Conditions and Diseases
Genetics
Birth Defects

Is cleft lip a fatal disorder?

No, a cleft lip means that your lip has naturally formed as if it had been cut in half. A simple surgery can fix this.

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Biology
Genetics
Biochemistry

What is biological continuity?

The thread of descent that connects all life - All life comes from life. A succession of parts intimately united.

Answer 2

All organisms are produced by their parents , genetic information is transferred from parents to offspring , through DNA via gametes ,this DNA is responsible for genetic continuity .

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Genetics
Multiple Births

Do twins get an extra chromosome from 1 parent?

No. Having an extra chromosome is actually a genetic defect. With twins, let's assume they are identical twins, the mother has one egg cell in the fallopian tube ready to be fertilized by a sperm cell. The sperm cell fertilizes the egg cell, but that egg cell then undergoes mitosis. All of the cell contents are duplicated and the cell divides into two. You now have 2 cells with the exact DNA which are twins. In the case of fraternal twins, the mother had two separate ova in her fallopian tubes and both were fertilized by two different sperm cells.

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