Answer:
an area of low concentration to an area of higher concentration
Answer:
Segregation.
Explanation:
The Mendel had worked on the pea plant and known as as the father of genetics. Mendel had explained the law of genetics that contains law of segregation, law of independent assortment and the concept of dominance.
The law of segregation states that at the time of formation of gametes, each allele may get separate or segregate from the pairs of alleles and unite to form the zygote. This includes the monohybrid cross. The phenotypic ration of monohybrid cross is 3:1 that explains the law of segregation.
Thus, the correct answer is option (A).
Answer: Nucleotides
Nucleotides is the correct answer.
Answer:
They can occur anywhere from thousands to billions of years.
Answer:
Sickle cell disease is due to a type of substitution mutation.
Explanation:
Sickle cell disease is a condition that is transmitted from parents to children in an autosomal recessive inheritance pattern. It is due to a mutation that is capable of altering the shape of the erythrocyte, as well as its ability to circulate and carry oxygen.
The mutation that occurs in sickle cell disease is due to an alteration in the β-chain of hemoglobin, caused by the substitution of thymine base by adenine in the DNA that determines it. As a result, valine replaces glutamic acid in the β-chain amino acid sequence, with the consequences described.
- <em>The other options are not correct because </em><u><em>deletion, duplication and translocation </em></u><em>correspond to chromosomal mutations, not responsible for sickle cell disease.</em>
