Answer:
50%
Explanation:
If the male has a cleft chin, that means that his chromosomes is Aa. His wife must be aa.
Female Female
Male Aa Aa
Male aa aa
With Aa, the child will have a cleft chin. With aa, the child will not. So the probability is 50%.
Answer:
1. The bacterium Vibrio cholerae obtains genes from its prey, a genetic transfer that occurs through the mechanism of transformation (option d).
2. In the V. cholerae bacterium, the acquisition of new genetic material involves the production of temporary merodiploid cells between the time the genetic material enters the cell and the time when recombination occurs (option a).
Explanation:
1. In pathogenic bacteria such as Vibrio cholerae the introduction of genetic material into their genome produces structural and functional changes that promote their ability to cause disease.
In this case, the incorporation of genes by transformation leads to morphological change, development of colonization factors and strengthening of the toxin that V. cholerae produces.
2. Bacteria are prokaryotic cells whose chromosome charge is haploid, with the ability to have a single allele in the gene that determines a trait, and not in allele pairs, as is the case in eukaryotic cells.
The addition of external genetic material results in the bacterium having two alleles for a gene at any given time, which is called a partial diploid or merodiploid cell.
<u>Once V. cholerae acquires new genetic material it becomes a merodiploid cell while genetic recombination occurs</u>.
A first-degree burn damages only the epidermis
3 examples of proteins in living organisms are; Collagen, Coronin, and Spectrin.
Answer:
D) Hydrogen bonding
Explanation:
A hydrogen bond is a kind of electrostatic force of attraction between the hydrogen atom and a more electronegative atom e.g. nitrogen, fluorine, and oxygen.
It is a weak force of attraction.
In size-exclusion chromatography, the attraction that exist between the proteins and dextran is hydrogen bonding.
The several hydroxyl groups thats seen in dextran accounts for why hydrogen bonding exists between dextran column material and the protein.
