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DNA replicates itself, so no, unlike what it may seem, parent organisms do not loose their DNA. Before the fecundation process, a cool process similar to miosis happens, it is called meiosis. During meiosis the parent chromosome will duplicate it self and break down each of its 46 chromosomes into 4 different new formed cells, which will become the sperm and egg cells. Each of these egg or sperm cells will be different from eachother, which is how you get siblings that don't look alike, however they will contain a copy of the parent's genetic information.
In conclusion;
In the creation of offspring, the copy of the parent's DNA breaks apart into 4 different pieces which will form sperm or egg cells.
Answer:
false
Explanation:
groundwater groundwater has an abundance of contaminants and pollutants
Answer:
D
Explanation:
Conjugation is one of the processes employed by bacteria cells for genetic exchange. It involves the transfer of genetic material from one bacterium (donor) to another bacterium (recepient) via direct contact.
The donor bacterium carries a DNA sequence called Fertility factor or F-factor, which allows it to synthesize a tube-like stucture known as pilus (plural - pili). The pili that performs this function in bacteria is called CONJUGATE PILI. The pilus draws the mating pair (donor& recepient cell) close to each other to form a wall-wall contact triggering the formation of a mating bridge. This bridge enables the transfer of genetic material, usually in form of a plasmid (a small circular piece of DNA capable of replication independently of the bacterial chromosome).
In bacterial conjugation, the process involves a small portion of the genome of the donor cell getting inculcated into the complete genome of the recepient cell. Hence, conjugation is of immense importance to bacteria, as it is an avenue to confer certain genes e.g. antibiotic-resistant genes.