Answer:
If an individual Drosophila has two or more populations of cells comprising different genotypes from one single egg then it is termed as twin spots or mosaic.
Explanation:
There might be different reasons for mosaic to occur like
Nondisjunctioning of the chromosomes
Lag in anaphase
Endoreplication
Mutations in a single cell
Mitotic recombination:
One of the major ways through which mosaic or twin spots arise is the mitotic recombination. It is also termed as somatic cross over. Twin spot or mosaic generally occurs if there is linking of heterozygous genes in repulsion. The recombination generally happens among the centromeres from the adjacent genes.
A common example of the mitotic recombination is the Bloom's syndrome. Bloom's syndrome is caused due to the mutation that occurs in the <em>blm</em> gene. As a result, there are defects in the BLM protein produced.
Uncontrolled production of cyclins will most likely result in uncontrolled division of the cell.
CELL DIVISION:
- Cell division is a biological process that every cell undergoes to replicate themselves. It is the process by which cells are multiplied in living organisms.
- According to this question, proteins called cyclins bind to enzymes that send signals for the cell to progress through stages of cell replication. However, at the end of the cycle, the cyclins are degraded to prevent further signaling for the cell to divide.
- In a case whereby there is an uncontrolled production of cyclins, this will most likely result in uncontrolled division of the cell because cyclins stimulate cellular division.
Learn more about cell cycle at: brainly.com/question/25068613?referrer=searchResults
Answer:
Interspecific competition
Explanation:
Germination is the process of seeds developing into new plants.
Answer: Codominence
Explanation:
Codominence is a condition in which two alleles of the same gene are expressed equally. Both alleles are capable of exerting their effects on the organism. Thus instead of expression of one trait both traits are expressed.
