Answer:
This experiment proved that DNA replicated semiconservatively; half the original polynucleotide is conserved in each of the two copies
Explanation:
Semi-conservative mode of replication means that the two strands of DNA unwind from each other, and each of themacts as a template for synthesis of a new, complementary strand. As a result, two formed DNA moleculesc ontain one original strand and one new strand.
Meselson and Stahl experiment showed this model by labeling the DNA of bacteria across generations using isotopes of nitrogen ( patterns of DNA labeling showed the mode of replication).
KCl + AgNO
3
→
KNO
3
+
AgCl
Explanation:
Formulas for the compounds:
KCl
:
potassium chloride (reactant)
AgNO
3
:
silver nitrate (reactant)
KNO
3
:
potassium nitrate (product)
AgCl
:
silver chloride (product)
KCl + AgNO
3
→
KNO
3
+
AgCl
If the compounds are in aqueous solution, then their physical states could be added.
KCl(aq) + AgNO
3
(
aq
)
→
KNO
3
(
aq
)
+
AgCl(s)
Answer:
Ribosomes
Explanation:
Rough endoplasmic reticulum, choloroplast and nucleus all are important organelles and are membrane bound except for ribosome
First pic :
plants do not have cell membranes
(plants have BOTH cell membranes and cell walls)
second pic:
ATGC
(opposite strand of the DNA TACG)
third pic:
the second choice
(selectively permeable means only specific molecules could get in and go out)
fourth pic:
option 2
(cellular respiration takes sugar (or food) and makes it into ATP energy. this is what makes us have energy after we eat)
I really hope this helped :))
Mouth, throat, stomach, long intestine, small intestine, then you know what happens after that...
