Answer:
The beetles gland stores enough hydroquinone and hydrogen peroxide to allow the beetle to release its chemical spray roughly 20 times. Thus pulsed mechanism is beneficial for the beetle survival because the system uses pressure instead of muscles to eject the spray at a constant velocity, saving the beetle energy.
Answer:
They are arranged in two layers called a phospholipid bilayer; with a hydrophobic, interior and a hydrophilic, exterior.
Answer:
Two pea plants are crossed, both are with yellow color, offspring produced are 25% with green peas, while remaining 75% are with yellow peas. It clearly describes that yellow pea color is dominant while green is recessive one.
According to the given data, the ratio of both pea colors is 3:1 of yellow to green color. According to Mendel's law of inheritance, it is only possible when both the parents are heterozygous for the pea genotype. Let the genotype for yellow color be 'Y' and that for green color is 'y'. So, the genotype of both parents would be "Yy", they will fuse to form offspring having 25% green and 75% yellow phenotype of pea color.
Gregor Mendel chose pea plants for his experiments because they are easy to raise, have many offspring per mating, can fertilize themselves and have varieties in genotype and phenotype that are easily observable.<span> These characteristics make pea plants ideal in the study of genetics and heredity.
</span><span>Mendel observed that his pea plants had several distinguishing physical features, such as plant size and pea color, that were governed by basically two alleles, or forms of genes. In general, pea plants grow well with minimal supervision and care. They can self-fertilize, so Mendel could pollinate the plants himself. The large number of offspring produced per mating gave Mendel a good number of plants to observe and work out the ratios of dominant and recessive alleles.</span>