Answer:
Its B i think hope it helps
Explanation:
Aerobic
Produces more energy(ATP)
Oxygen is used
Anaerobic
Produces Less energy
Oxygen is Absent
Lactic Acid is Produced
:In Microorganisms
Alcohol/Ethanol is produced
Carbon dioxide is given off
Answer;
During Prophase 1 of meiosis there is crossing over
, while,
Prophase of mitosis has no crossing over
Explanation;
-The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred.
-The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.
-During prophase 1 of meiosis; chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears.Crossing-over is the process that can give rise to genetic recombination. At this point, each homologous chromosome pair is visible as a bivalent (tetrad), a tight grouping of two chromosomes, each consisting of two sister chromatids. The sites of crossing-over are seen as crisscrossed nonsister chromatids and are called chiasmata.
Answer:
5) modified guanine nucleotide
Explanation:
The 5 'end of the mRNA is modified in the eukaryotic nucleus (but not in the mitochondria or chloroplasts). Modification reactions are probably common in all eukaryotes. Transcription begins with a nucleoside triphosphate (almost always a purine, A or G). The first nucleotide retains its 5' triphosphate group and forms the usual phosphodiester bond from its 3' position to the 5' position of the next nucleotide.
But when mature mRNA is treated in vitro with enzymes that must degrade it into individual nucleotides, the 5' end does not produce the expected nucleoside triphosphate. Instead, it contains two nucleotides connected by a 5'-5' triphosphate bond and also contains methyl groups. The terminal base is always a guanine that will be added to the original RNA after transcription.
The addition of G at the 5' end is catalyzed by a nuclear enzyme, guanidyl transferase. The reaction occurs as soon as transcription begins and it is not possible to detect more than traces of the original 5' triphosphate end in nuclear RNA. The total reaction can be represented as a condensation between GTP and the original 5' btriphosphate terminal of the RNA.
By classifying a limabean and wait for it to grow to classify it so it's way more easier to look at the pollen and that's how you classify pollen from a flower.!!!
