A Burr hole.
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Answer:
Epistasis
Explanation:
In epistasis, the interaction between genes is inimical, such that one gene masks or interferes with the expression of another. “Epistasis” is a word coined of Greek roots that mean “standing upon.” The alleles that are being masked or silenced are said to be hypostatic to the epistatic alleles that are doing the masking. The cause of the biochemical basis of epistasis is a genetic pathway in which the expression of one gene is dependent on the function of a gene that precedes or follows it in the pathway.
The example of epistasis given is the pigmentation of mice. we were told that "if a mouse has two recessive alleles for coat color, it is always albino no matter what the genotype of other genes involved in coat color"
Let say recessive allele (rr), it is always albino irrespective of other type of other genes, this is true in the stance that epistasis can be reciprocal such that either gene, when present in the dominant (or recessive) form, expresses the same genotype.
Answer:
In a massive star, hydrogen fusion in the core is followed by several other fusion reactions involving heavier elements. Just before it exhausts all sources of energy, a massive star has an iron core surrounded by shells of silicon, sulfur, oxygen, neon, carbon, helium, and hydrogen.
Explanation:
please give me a heart
The Respiratory zone includes the alveoli, while the conducting zone includes the trachea.
<h3>
What is the function of the trachea?</h3>
Your windpipe, or trachea, is a component of your airway system. Your lungs get oxygen-rich air through channels called airways. Additionally, they transport carbon dioxide, a waste gas, from your lungs. Air enters your body through your nose, passes through your larynx, and then descends through your windpipe. Or, to put it another way, the trachea is a little tube that joins the larynx to the lungs' bronchi. It's also referred to as a "windpipe." The windpipe is packed with mucus to trap microorganisms since it is vulnerable to many illnesses when air is inhaled through this pipe.
To learn more about the trachea, visit:
brainly.com/question/3700873
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Atmosphere
I hope this helps you have a great day!