Answer:
Cell is the basic structural and functional unit of life or body. For example, nerve cell is the functional and structural unit of nervous system, nephron forms the structural and functional unit of excretory system et cetera. When many similar cells work together to attain the same function, they form a tissue
The ability to recognize reality and to cope with the demands of daily life is called Mental Health.
Answer:
percentage of the group heterozygous for the sickle hemoglobin allele = 32%
Explanation:
If
p = frequency of dominant allele
q = frequency of recessive allele
According to Hardy-Weinberg equilibrium: p² + 2pq + q² = 1 and p + q =1
where p² = frequency of homozygous dominant population
q² = frequency of homozygous recessive population
2pq = frequency of heterozygous population
Here, frequency of sickle cell disease (homozygous recessive) = 0.04
q² = 0.04
q = 0.2
p + q =1
So p = 1 - 0.2 = 0.8
Frequency of heterozygous population = 2pq
2 * 0.8 * 0.2 = 0.32
Hence percentage of people heterozygous for sickle hemoglobin allele = 32%