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victus00 [196]
3 years ago
11

What happens to DNA during S phase

Biology
1 answer:
Lelechka [254]3 years ago
6 0
The S phase is part of the cell cycle and takes place in interphase. Which is the process before mitosis. In this phase the DNA is replicated.
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Your teacher asks you to model the phases of mitosis using a cheese pizza. You may use other toppings or kitchen tools to develo
I am Lyosha [343]

Interphase: Add mushrooms to represent organelles and a ring of pepperoni to make a nuclear membrane. Strips of peppers would represent the DNA inside the nucleus. To model the end of interphase, double the number of mushrooms on the pizza to indicate the copying of the organelles. Double the number of peppers inside the nucleus to represent the replication of DNA.

Prophase: Pair strips of pepper inside the nucleus to show the formation of chromosome pairs. Strips of aluminum foil would represent spindle fibers.

Metaphase: Line up the pair of peppers along the middle of the pizza. Removing the pepperoni would show the breakdown of the nuclear membrane.

Anaphase: Split up the pairs of peppers, and show the spindle fibers, made of aluminum foil, pulling them to either side of the cell.

Telophase: Make two new nuclear membranes around the pepper strips using pepperoni. Separate the pairs of peppers to show the chromosomes unwinding.

Cytokinesis: Cut the pizza across the middle to show the cell dividing into two daughter cells.

4 0
3 years ago
Read 2 more answers
During cellular respiration, cells convert oxygen and glucose into carbon dioxide, water, and energy. how is this process relate
enyata [817]
In photosynthesis, using light energy, plants convert CO2 and H2O into O2 and C6H12O6
CO2= carbon dioxide
H2O= water
O2= oxygen
C6H12O6= glucose
5 0
3 years ago
Read 2 more answers
1. Plants carry out chemical reactions that make sugars, which contain carbon, hydrogen, and oxygen, from carbon dioxide (CO2) a
Hatshy [7]

Answer:

Radioactive labeling is a procedure used to monitor the path followed by a chemical element within  a biological system to demonstrate the source.

Hypothesis:

The free oxygen produced during photosynthesis comes from water.

Procedure.

Single-celled algae were placed in four petri dishes containing carbon dioxide, glucose dissolved in  Water.

In each box the oxygen was radioactively marked.

1 petri dish with CO2 marked. Experimental groups

2 petri dish with H2O marked. Experimental groups

3 petri dish with Glucose marked. Experimental groups (control)

4 petri dish with CO2 + H2O + Glucose, all marked. (control).

6 0
3 years ago
Which statement does not apply to the human egg
andre [41]

Answer:

produced at one at a time.

Explanation:

human egg are not produced only at one time.

6 0
2 years ago
Match these items .
dangina [55]
1. scales & cone parts

2. Pistil and stamen & flower parts

3. egg & female cell

4. mitosis & cell division

5. hyphae & fungi parts

6. vegetative production & leaf and spore case

7. Sperm & make cell

8.
3 0
2 years ago
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