<span>The nucleus is located at the center of an atom. It's very dense - almost all of the mass of an atom is located in the nucleus - and is made up of protons and neutrons. </span>
compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
Answer:
Option (D).
Explanation:
Recombination frequency nay be defined as the the frequency of crossover of a single chromosome during meiosis. The maxiumum recombination frequency is 50%.
Genes that has recombination frequency nearly equal to 50% are considered as unlinked genes. Unlinked genes cannot undergo the recombination process and may have equal chances to inherit together or can inherit separately in the next generation.
Thus, the correct answer is option (D).
The most efficient procedure that scientist can use to obtain more
recombinant dna for a particular trait is Clone the dna in
a biological vector. This method will give more assurance that they
will get the traits that they wanted form the subjects.
C. an endangered species is one that is at risk of dying out, while an extinct species is one that no longer exists.