Answer:
(1) True
The most prevalent alleles in a population are called wild type alleles
(2) False
Recessive alleles usually cause an increase in functional protein expressions
(3) True
If a person is heterozygous for a recessive disease allele they normally possess 50% of the normal amount of protein.
(4) True
A single copy of an allele showing a complete dominance typically masks the effects of a recessive allele
(5) False
Dominant alleles are always the result of gain of function mutations
Explanation:
An allele is one of a pair of genes that occur on a particular chromosome at a specific location and regulate the same characteristics, such as blood type or blindness in colour. They are pairs or series of genes on a chromosome that determine the hereditary characteristics. The type of blood you have inherited from your parents is determined by the alleles.
Plants: roots; chordates: backbones. Both provided support to live on land
In terms of inputs, outputs and energy transformations, photosynthesis can be summarized as follows. Inputs - Sunlight as energy source, carbon dioxide and water. Processes - Chlorophyll traps sunlight; the energy is used to split water molecules; hydrogen from water is combined with carbon dioxide to produce glucose.
There are two types of cell
1.prokaryotic(bacteria)
2.eukaryotic (animal, plant, fungi and protoctista)
Answer: Option D
Explanation:
Once the pathogen enters the body, it starts dividing and after a certain period of time the patients experience some sign and symptoms of illness.
The prodromal period occurs just after the incubation period. In this phase the pathogen keeps on dividing and the host begins to experience general symptoms and signs of illness.
This is a result of the activation of immune system of the body which results in the swelling, pain, soreness.
