Answer:
Multiple alleles can modify the classical Mendelian ratio by increasing the number of phenotypes.
For example, in a monohybrid cross, Mendel gets only 2 phenotypes however, in ABO blood groups (a classical example of multiple alleles) there are four phenotypes present in a population.
Lethal alleles are the alleles which when expressed result in the death of an organism. These alleles can be dominant, recessive or conditional (depends on interaction with another gene).
Thus, lethal allele reduces the ratio of the phenotype associated with it by affecting the survival of the organism.
For example, lethal yellow allele in mice results changes the phenotype ratio from 3:1 to 2:1
Answer:
They both use imagination
Explanation:
Children typically have quite a wide range of imaginative thinking, so when you are using creative thinking, you are using your imagination
Answer:
D. Smoke from a fire
Explanation:
Smoke from a fire is the correct answer because it is made up of physical atoms. Sounds, light, and temperature are not made of atoms and are thus not matter.
The structure being described is the tricuspid valve.The right atrium is one of the two atria of the heart which function by receiving blood entering the heart, it is located to the right of the left atrium and superior to the much larger and more muscular right ventricle. Between the right atrium and right ventricle is a one way valve known as the tricuspid valve.
Answer:
Yes, carbonic acid is the part of blood buffer system.
Explanation:
Carbonic acid is a part of blood buffer system which helps in regulating of pH of the blood. Hydronium ion is responsible for the increase in acidity of the blood. The carbonic acid dissociates into bicarbonate and hydrogen ion, this bicarbonate ions react with the hydronium ion and prevent the pH of the blood from decreasing so we can say that carbonic acid is an essential part of blood buffer system.
