1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedaia [141]
3 years ago
12

The genome of an organism is its total genetic material. What aspects of the genome can and cannot be determined through karyoty

ping?
Biology
1 answer:
Nina [5.8K]3 years ago
4 0
 Best Answer:<span>  </span><span>A karyotype is an actual photograph of the chromosomes from one cell. Karyotypes are usually done using blood cells, fetal skin cells (from amniotic fluid or the placenta) and occasionally bone marrow cells. While a karyotype is used to confirm that a person has Down syndrome due to an extra chromosome number 21, it actually gives much more information. 

From a patient’s perspective, a karyotype is a simple blood test. But what happens to the blood after it is collected is actually quite complex. This step by step guide will help you understand why it takes so long (up to a week) to get karyotype results. 


GENETIC DISORDERS 
What a karyotype tells us 

Karyotype analysis determines the number of chromosomes in the cells and whether there are any pieces of chromosomal material that are missing, extra, or rearranged. Any variation from the normal chromosome number and arrangement can have implications for a person's fertility and the risk for having a baby with birth defects. The following chromosomal conditions can be detected by karyotype analysis: 



Down syndrome (an extra 21 chromosome) 

Turner syndrome (females with only one X chromosome) 

Klinefelter syndrome (males with two X chromosomes and a Y chromosome) 

Other sex chromosome conditions, such as XXX or XYY 

Any other aneuploidy, which is an extra or missing single chromosome 

Triploidy, which is an extra set of chromosomes, so there are three of each and 69 total 

Mosaic chromosome conditions, in which a portion of the cells show an abnormal number or arrangement of chromosomes and a portion show a normal number and arrangement 

Translocations, which are rearrangements of the chromosome material 

Large missing or extra pieces of chromosome material that are visible under a microscope 



What a karyotype cannot tell us 

There are many genetic conditions that are the result of single gene mutations. Additionally, there are many genetic conditions that are caused by multiple genes interacting. These conditions cannot be detected by chromosome analysis. Examples of conditions that cannot be detected by karyotyping are: 



Very small deletions of the chromosomal material 

Very small duplications of the chromosomal material 

Some very subtle chromosome rearrangements 

Cystic fibrosis 

Tay-Sachs disease 

Sickle cell disease 

Dwarfism 

Breast cancer 

Cleft lip/palate 

Heart defects 

These are only a few examples. The complete list would contain thousands of genetic conditions that cannot be detected by chromosome analysis.</span>
You might be interested in
Imagine that a eukaryotic cell carries a mutation that causes the poly(a) tail to rarely be added to the primary transcripts. wh
Liono4ka [1.6K]

Imagine that a eukaryotic cell carries a mutation that causes the poly(a) tail to rarely be added to the primary transcripts. The result of such a mutation will be the primary transcript would likely be less stable, and its transport from the nucleus to the cytoplasm would be affected.

A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

While most mutations are benign, some can be detrimental. A dangerous mutation may lead to a cancerous condition or possibly a genetic problem. Chromosome mutations are yet another type of mutation. The tiny, thread-like structures known as chromosomes, which are found in the cell nucleus, carry genes.

Genetic mutations, which occur as your cells divide and generate duplicates of themselves, are modifications to your DNA sequence. Your DNA teaches your body how to develop and work. Genetic changes may result in diseases like cancer or, in the long run, may enable people to adapt to their environment more successfully.

To learn more about mutation please visit -
brainly.com/question/13923224
#SPJ4

4 0
2 years ago
Think about the example of the food chain, when the snake population grew out of control. Imagine the opposite. Imagine that the
jolli1 [7]
The primary consumers like rabbits or other small animals that are normally eaten by the secondary consumers (snakes) would over populate and eat all of the producers (plants) and the plants would die out. This would eventually lead to the decrease of the primary consumer (rabbit/small animals) population.
5 0
4 years ago
Which of the following pairs is not correctly matched?
MAVERICK [17]

Answer:

A band - light central region of sarcomere.

Explanation:

Sarcomere is the basic structural unit of the skeletal muscles. These sarcomere shows striations ( light and dark bands) when veiw under the microscope.

A band or anisotropic band is the dark region of sarcomere. A band consists of both thick and thin filaments of actin and myosin proteins. The A band has the ability to refract light and appears dark.

Thus, the correct answer is option (D).

6 0
3 years ago
Scientist determine that abundance of apple aphids on leaves of 120 apple trees. the autumn leaf color of the apple tree varied.
Kobotan [32]
The answer is bold dependent and underline independent. In addition to biology laboratory examination, independent variable is the most important variable in which this variable is manipulated in what the investigator differs in the experiment. Dependent variable in the experiment, one variable will be stately or calculated or experimental in reaction to experimental situations. 
6 0
3 years ago
Dna fingerprinting is based in part on recombinant dna technology and in part on those techniques originally used in medical gen
Mekhanik [1.2K]
DNA markers between a suspect and a crime scene specimen are compared, including <span>DNA minisatellites, short tandem repeats (STRs) and single nucleotide polymorphisms (SNPs). The total markers that can be compared can number in the thousands, and therefore the chances of DNA fingerprinting identifying the incorrect suspect are negligible. </span>  
7 0
3 years ago
Other questions:
  • Humans are unique in that they have adapted to the natural environment through a series of long-term interactions between ____.
    5·1 answer
  • The question is: What is the relative age of layer 3? (Hint: With what absolute ages can you compare it?)
    13·1 answer
  • What is a meristematic cell?
    11·1 answer
  • Describe photosynthesis, write the equation for photosynthesis using symbols and words
    7·1 answer
  • What variety of moth increased over the ten year period
    9·1 answer
  • I need help ASAP
    9·1 answer
  • Did humans cause the drought in São Paulo?
    13·1 answer
  • How many gallons of water did the population of Atlanta use per day in 1980?
    13·1 answer
  • Helpppp meeeeee plssssss
    5·1 answer
  • How do living things provide evidence for evoultion
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!