The answers are; geographical isolation and temporal isolation.
In temporal isolation, because the different species have different mating seasons, so even though their habitats overlap, they do not interbreeding is rare. Geographical isolation also plays a role because the different species are found predominantly in different sites during breeding, some in the woodland, some in the lowlands and others in streams.
Explanation:
please mark me as a brainlist...
Answer:
b. A second marker in the knock-out cassette, that if inserted into the genome results in cell death when plated on selective media.
Explanation:
General recombination, also known as homologous recombination, refers to the naturally occurring process of exchange of genetic material between pairs of homologous DNA sequences. This process (homologous recombination) can be exploited by genetic engineering to insert DNA segments of interest at target genes. Moreover, a cassette is a mobile DNA segment containing almost a gene and a recombination site, which is integrated into the <em>locus</em>/<em>loci</em> of interest by homologous recombination. A cassette may contain a DNA segment called 'negative marker' which prevents growth under particular conditions, while a positive marker permits growth under certain conditions. In consequence, a second marker consisting of a drug cassette may be used as a negative marker in order to evidence its insertion by inducing cell death when they are plated in selective conditions.
Thanks for submitting your question to Brainly!
Your answer is : B) Two
Explanation:
Comparison
A chemical equation and algebraic equation are both expressions that shows the equality and uniformity of some species.
For example:
Algebraic equation 2A + B= 4
implies that solving for species on the left hand side will give us 4 and vice versa
Chemical equation: 2H₂ + O₂ → 2H₂O
implies that when the two species on the left hand side combines they will give that on the right hand side and vice versa
Contrast
Chemical equations involves the combinations of atoms to form molecules and compounds. They use chemical species in their expression.
Algebraic equations uses numbers and variables usually alphabets to solve a problem and establish relationships.
Learn more:
Chemical equation brainly.com/question/4216541
Algebraic equations brainly.com/question/1617787
#learnwithBrainly
