All dog breeds would be regarded as one Species under the theory of reproductive isolation.
Breed vs Species :
A breed is a group of creatures of a species who have undergone selective breeding to develop some unique traits.
A species is a group of organisms that can interbreed to produce viable progeny.
Through a process of artificial selection, different breeds of a species are created. Natural selection is the process by which different species develop.
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Answer:
DNA is formed by the union of many deoxyribonucleotides, it is composed of two long chains of polynucleotides, which are kept together due to the interactions of their nitrogenous bases.
Explanation:
DNA is the carrier of genetic information, it can therefore be said that genes are made up of DNA. Nucleotides are the monomeric units of DNA and RNA, also known as nucleic acids, which are responsible for storing and transmitting genetic information from one generation to another. The primary structure of DNA is the deoxyribonucleotide sequence of one of the strands. Genetic information is contained in the exact order of nucleotides
<u>Answer:</u>
<em>Trochlear notch is the primary region of the ulna that forms the hinge joint with the humerus. Trochlear notch is the upper cavity part of ulna that has the purpose of fitting the trochlear part of the humerus</em><em>.</em>
It is the hinge joint in the elbow region that makes the hand flexible to rotate. The <em>notch is a semicircular hollow cavity structure in the human arm to fit </em>in the humerus bone which is the bone above ulna in human arm.
The answer is <span>C) crossing over.
</span>The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. If it is known that homologous chromosomes are present only in the meiosis I, it is expected that crossover is occuring meiosis I.<span> Homologous chromosomes pair up in the prophase. Therefore, meiosis prophase I is the phase in which chromosomal crossover occurs. Chromosomal crossover is process that </span>helps make meiotic cells genetically <span>different.</span>
