Answer:
d
Explanation: the genes carry what is needed to change, and the cells change due to what is happening in the genes
Answer:
it results in 2 exact copies of the original dna strand
Explanation:
The dna is unzipped and the two strands are used as templates for the 2 new dna molecules
The type of solution that would cause a bacterium with a weak or damaged cell wall to burst as water moves into the cell is a hypotonic solution.
When a bacteria with a weak cell wall is kept in a hypotonic solution, the concentration of the water outside the cell is large, and within the cell it is low. This concentration gradient of water forces the water from the outside to exert force onto the cell wall. If the cell wall is weak, then the water rushes in bursting the cell.
Answer:
divergent plate boundaries
Explanation:
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.
Answer:
Option A
Explanation:
Options
A. most populations were fixed for a single genotype, but genotypes varied among populations
B. average heterozygosity was declining steadily over time
C. individual populations were polymorphic for several loci and most populations were genetically similar to one another
D. all populations were fixed for the same allele at each locus studied
Solution
As per the study conducted by Templeton, it was found that human affect the biodiversity at all biological levels such as genetic, ecosystem, species etc. and behind genetic variation two important factors are genetic drift and gene flow.
Both the gene flow and genetic drift produce opposite results as genetic drift increase variation with in the species but decrease variation with in the local population and the opposite of this happens in gene flow.
Genetic drift has actually lead to speciation of collared lizards among themselves for a specific genotype
Hence, option A is correct
