First, we consider the parents:
Phenotypes: Polka dots
Genotypes: Pp
Using a punnet square,
P p
P PP Pp
p Pp pp
Therefore, out of four, the phenotypes and genotypes of the offspring will be as follows:
Phenotypes: 3 with polka dots (75%) and 1 with solid (25%)
Genotypes: 1 dominant homozygous (25%), 1 recessive homozygous (25%) and two dominant heterozygous (50%)
The answer is option D.
Answer: Golgi Apparatus
Explanation:
The Golgi apparatus is the organelle that helps in the packaging of the proteins that is synthesized by the cell.
It also helps in certain modifications, sorting and packaging of the protein and lipid molecules in the cell.
The synthesized and the modified protein is transported to the outside of the cell where it reaches.
hence, the correct answer is Golgi apparatus.
Answer:
All cells arise from pre existing cells.
Explanation:
one of the principles on the cell theory states that all cells came from pre existing cells . The two cells are parent cells who are big enough to undergo mitosis. The 4 cells made out of this event are daughter cells .
Some rivers begin in mountains or hills, where rain water or snowmelt collects and forms small channels, . At first, the channels are small and are called rills. As more water enters the channels they grow forming gullies (larger channels). The streams in the gullies eventually become big enough to form a river
Answer:
Abiotic factors of ecosystem are the non-living component such as water, air and nutrients. If abiotic factors are changed, the ecosystem is disturbed because abiotic factors are very important components of ecosystem. Without these, the ecosystem will not perish or grow. If water is removed from an ecosystem, all the organisms will be die because every living organisms needs water for their survival. If nutrients are not available, the food produce by plants is less in quantity and animals which feed on plants die because of huger.