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puteri [66]
3 years ago
9

Supercoiling is important for DNA structure, because Supercoiling is important for DNA structure, because it provides energy for

transcription. it prevents RNA from pairing with DNA in the double helix. it holds together the antiparallel strands of DNA in the double helix. it condenses the DNA so that it can fit inside the cell.
Biology
1 answer:
Vinil7 [7]3 years ago
4 0

Answer:

it condenses the DNA so that it can fit inside the cell.

Explanation:

Supercoiling is a level of genome packaging and is important for the packaging of the DNA which is about 2m in length inside a nucleus that is about 6microm. Supercoiling refers to the over (positive supercoiling) or under winding (negative supercoiling) of a DNA strand, and is an expression of the strain on that strand. Supercoiling is in compacting DNA, and also allows for the regulation of access of transcriptional machinery and other biological activities to the DNA and in turn gene expression. Certain enzymes such as topoisomerases are able to change DNA topology to facilitate access of DNA replication or transcription.

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Organelles are structures within the cell that perform important functions. Which of the following correctly matches the
Firdavs [7]

Answer:

mitochondria: <u>powerhouse of the cell</u>

Ribosomes<u>: the places where proteins are synthesized in our cells. </u>

nucleus <u>houses DNA;controls cell</u>

Vacuole: <u>holds waste and fluids from cell</u>

Ribosomes: <u>tiny organelles that contain RNA and specific proteins within the cytoplasm. </u>

Explanation:

Organelles make up the subunits of a cell.  There are numerous each with their own function.  

3 0
2 years ago
Do Different cell types also have special duties, like building skin or bone, pumping out hormones, or making anti-bodies.
Schach [20]

Answer:

Yes, different cell types also have special duties, like building skin or bone, pumping out hormones, or making anti-bodies.

Explanation:

Cell is the basis structural and functional unit of a living organism. The body of a human is composed of trillions of cells that are organized in around 200 types of cells.

<u>A tissue is simply a group of specific kind of cell that have  a specific role.</u>

  • For example: The nervous system contains cells called neurons that have ability to transmit message from one place to another and allow us to respond to any environmental stimuli, such as heat, cold, danger etc.
  • Skin cell is composed of cells that have a role in protecting the body against the attack of harmful microbes. They also protect have role in building new skin cells and adding the protection to our body.
  • Blood cells have a role in providing us immunity (for example white blood cells) therefore, make us better able to protect ourselves from danger of diseases.
  • Muscle cells help us in moving our organs as well as allowing the whole movement from one place to another.

Thus we see that different types of cells have special functions and all these different cells coordinate with each other to make an organized and functioning body of a living organism.


Hope it help!

7 0
3 years ago
What type of inheritance can be seen in carriers
pogonyaev
Autosomal recessive inheritance: two unaffected people who each carry one copy of mutated gene for and autosomal recessive disorder (carriers) have a 25% chance with each pregnancy of having a child affected by the disorder.
4 0
3 years ago
According to MyPlate, an adult age 18 or older should consume how many cups of milk or milk equivalents per day on a 2,000-calor
kondaur [170]

Answer:

3

Explanation:

Daily Recomendation

Children

2-3 years old ---2 cups

4-8 years old ---2½ cups

Girls

9-13 years old ---3 cups

14-18 years old ---3 cups

Boys

9-13 years old ---3 cups

14-18 years old ---3 cups

Women

19-30 years ---3 cups

31-50 years old ---3 cups

51+ years old ---3 cups

Men

19-30 years old ---3 cups

31-50 years old ---3 cups

51+ old years old ---3 cups

Cup Equivalents for Milk and Milk Products:

1 cup of milk, yogurt, or soymilk— gives 1 cup equivalent

1.5 ounces of natural cheese— gives 1 cup equivalent

2 ounces of processed cheese— gives 1 cup equivalent

8 0
3 years ago
What effect has breast cancer research had on society? People who have gene mutations have more treatment options. People now fa
storchak [24]

Answer:

1# Questions: People who have gene mutations have more treatment options.

2# Question: 20 amino acids

Explanation:

8 0
3 years ago
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