Answer:
The two kingdoms of prokaryotes are kingdom archaea and eubacteria. Eubacteria
Eubacteria are the disease causing bacteria. They are more complex than archaea bacteria and are found almost everywhere. They are important to the ecosystem because they help with decomposition of materials. The defining feature of archaea bateria is its living environment. They thrive in environments with EXTREME temperatures. They can live in very hot or very cold areas.
Originally, prokaryotes were classified only in kingdom monera but new discoveries and technology led to the split.
Answer:
The genotype of both parents is RrYy.
The possible types of gametes would be RY, Ry, rY, and ry.
The cross would produce offspring that can have one out of four types of phenotypes:
- Round and yellow seeds (1 RRYY+ 2 RrYY +2 RRYy + 4 RrYy) = 9/16
- Wrinkled and yellow seeds (3 rrYy) = 3/16
- Round and green seeds (1 RRyy + 2 Rryy) = 3/16
- Wrinkled and green seeds (rryy) = 1/16
Thus, one out of 16 offspring would have wrinkled and green seeds.
No endoplasmic reticulum (ER) would result in the cell's death.
There are two types of ER, rough and smooth.
Rough ER (RER) is studded with ribosomes and this is the site of protein synthesis. The RER is very important for proteins that are to be secreted - these proteins have a signal peptide (the first 5-10 amino acids) that gets processed inside the ER lumen - a signal peptidase removes the signal peptide and then this goes to the Golgi to be delivered. No RER - no proteins get secreted to the cell wall - so no transporters, etc. Not a happy cell.
The smooth ER functions in lipid biosynthesis and metabolism. It is also the site of steroid hormone production and detoxification. It is also the site of the initial glycosylation of proteins. If this doesn't happen, the protein doesn't function properly.
No ER = bad news for a eukaryotic cell!
