Explain incomplete dominance, using snapdragon flowers as an example
2 answers:
Answer:
Incomplete dominance is a type of interaction takes between two different alleles of a gene in which one allele can not express itself completely over the other allele.
It results in the production of third phenotype which is usually the intermediate of the two parental traits.
For example, when plant bearing red colored (dominant trait) snapdragon flower is crossed with the plant having white (recessive trait) flowers, it resulted in the production of the plants with pink flowers (intermediate of red and white).
When pink flowered plants were crossed they resulted in the production of plants with three types of phenotype.
The genotype and phenotype ratio were same: 1 (RR, red) : 2 (Rr, pink) : 1 (rr, white).
You might be interested in
A sacromere is a segment between two adjacent Z discs and are essential for the striated structure of the cardiac and skeletal muscles.
<u>Explanation:</u>
The Z disc is surrounded by the I band made of thin filament called actin. The I band is followed by the A band made up of thick filament called myosin. When the muscles contract the actin and the myosin become superimposed/overlapped.
The sliding filament model explains the contraction of the sacromere in which the Z discs move closer due to the overlapping of the thin and thick filaments. Thus the I band moves close to the A band which remain the same length as shown in figure.
