Answer:
Stomata are tiny holes found in the underside of leaves. They control water loss and gas exchange by opening and closing. They allow water vapour and oxygen out of the leaf and carbon dioxide into the leaf.
Explanation:
Answer:
1st point describes both the sperm and ovum.
Answer:
A
Explanation:
Radioactively labelled amino acids will be found in the ribosomes. These are the organelles that are the site of protein synthesis.
Amino acids are taken up into the cytoplasm from the surrounding cell culture medium. Amino acids are then bound to tRNAs (with the enzyme aminoacyl-tRNA synthetases) and taken to the ribosome, where they are assembled into a polypeptide chain by the translation machinery.
You would be crossing Pp and Pp. If you put them in a punnet square, the four possible gene combination you get would be PP, Pp, Pp, and pp. In all cases except the last, the resulting flower's phenotype would be purple. So the probably of purple flowered offspring is 75%, or 3/4.
Answer:
The internal structures disrupted by this chemical are probably VACUOLES.
Explanation:
A vacuole is a large membrane-bound vesicle in a cell's cytoplasm.
The central vacuole of a cell houses the digestive processes which includes chemicals that come to attack the cell; also it helps the cell regulates it's water concentration during changing environmental conditions.
vacuoles are present in the absorptive cells (enterocytes) covering the wall of the intestine
