the basic unit of life is the cell
I – False
II – False
III – True
A cellulose cell wall surrounds both the bacterial and plant
cell. FALSE
TRUE – A Cellulose cell wall surrounds only plant cells.
Lysosomes and mitochondria are responsible for respiration
in prokaryotes and eukaryotes respectively – FALSE
TRUE – Mitochondria
are responsible for respiration in both prokaryotes and eukaryotes
Similarities of fossils of chimpanzees and humans are an
example of Molecular Homology – TRUE
It can be possible because the mother can present B blood phenotype. This opens the possibility of she having an heterozygous genotype of I^b i or I^b I^b which are dominant over the genotype of the O type father.
Answer:
Genetic drift (sampling error)
Explanation:
According to the given information, the population under study has a small size and is more likely to be affected by genetic drift. Genetic drift refers to any chance event that leads to random changes in the allele frequencies of a population over time.
It may occur by sampling error that either makes the allele frequency 100% in the population or completely removes it from the population. Sampling error occurs quickly in the small population. The initial frequency of "blood type A" was 3/85= 0.035. Over the time period of 45 years, sampling error during gamete formation and random fertilization removed all the individuals with "blood type A" from the population and reduced its frequency to 0.
