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BlackZzzverrR [31]
3 years ago
12

Why is it important that the cells DNA is duplicated before cell division

Biology
2 answers:
Greeley [361]3 years ago
8 0

Answer:

If the DNA wasn't duplicated, one of the daughter cells wouldn't have DNA and die.

Explanation:

The cell would split into a cell that had DNA and would survive and a cell that wouldn't survive. The one that doesn't have DNA wouldn't be able to go through cellular functions. Why? The DNA needed to direct functions wouldn't be present.

finlep [7]3 years ago
8 0

Answer:

If the DNA wasn't duplicated, one of the daughter cells wouldn't have DNA and die.

Explanation:

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What does a dominant trait and recessive trait mean (if you cheat you dont get the brainliest)
Andrew [12]

Answer:

A dominant trait is a trait that overpowers, a recessive trait is more rare.

Explanation:

Dominant traits are the most common trait in a pair. They will be seen the most often in offspring. Recessive traits are usually repressed traits that the parents had that were not previously visible

5 0
3 years ago
The________molecules that are produced from DNA are used by the cell's​
Temka [501]

Answer:

The majority of genes carried in a cell's DNA specify the amino acid sequence of proteins; the RNA molecules that are copied from these genes (which ultimately direct the synthesis of proteins) are called messenger RNA (mRNA) molecules.

7 0
3 years ago
The 7 levels of biological organization are?
Taya2010 [7]

Smallest to largest- molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.

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4 0
3 years ago
Before oxgyen is picked up in the lungs by hemoglobin, it first diffuses through (a) alveolar cells, (b) blood plasma, (c) red b
kherson [118]
<h2>a,d,b,c is the correct order</h2>

Explanation:

Before oxygen is picked up in the lungs by hemoglobin, it first diffuses through (a) alveolar cells,d) capillary walls (b) blood plasma, (c) red blood cell plasma membranes

  • Although oxygen dissolves in blood, only a small amount of oxygen is transported this way,1.5 percent of oxygen in the blood is dissolved directly into the blood itself and most oxygen—98.5 percent—is bound to a protein called hemoglobin and carried to the tissues
  • Hemoglobin  (Hb) is a protein molecule found in red blood cells (erythrocytes) made of four subunits: two alpha subunits and two beta subunits
  • Each subunit surrounds a central heme group that contains iron and binds one oxygen molecule, allowing each hemoglobin molecule to bind four oxygen molecules
  • Molecules with more oxygen bound to the heme groups are brighter red because of which oxygenated arterial blood where the Hb is carrying four oxygen molecules is bright red, while venous blood that is deoxygenated is darker red
  • At the same time, carbon dioxide that is dissolved in the blood comes out of the capillaries back into the air sacs, ready to be breathed out
  • Oxygenated blood travels from the lungs through the pulmonary veins and into the left side of the heart, which pumps the blood to the rest of the body
  • Oxygen-deficient, carbon dioxide-rich blood returns to the right side of the heart through two large veins, the superior vena cava and the inferior vena cava
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6 0
3 years ago
A developer wants to extend a golf course into a wetland. Outline
Kipish [7]

Answer:

This is a wrong decision.

Explanation:

This decision is not right because by removing wetland means removal of habitat of millions of organisms living in that wetland. The advantages of wetland is more than golf course. Golf course is only used for sport purpose but wetland has a number of purposes i. e. it provides protection against floods which occurs due to climate change, absorb pollutants and enhances water quality.

6 0
3 years ago
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