A mutation
This is because mitosis is the division of cells. Meiosis is the division of sex cells. A chromosome is made up of DNA and is not a permanent change of the genetic material for a cell.
An oyster possesses pearl that are created over time by some sort of process, and are used in fashion items
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The statement that is true is active transport moves against the concentration gradient.
<h3>WHAT IS ACTIVE TRANSPORT</h3>
Active transport is one of the two types of cellular transport that involves the movement of molecules against a concentration gradient.
This moves that movement occurs from a region of lower concentration to a region of higher concentration. Since movement is against a concentration gradient, it involves input of energy (ATP).
Therefore, the statement that is true is active transport moves against the concentration gradient.
Learn more about active transport at: brainly.com/question/2503897
C. must be controlled to coordinate with the cell cycle
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Double helix structure of dna brca1 and brca2. BRCA1 expression is reduced or undetectable in the majority of high grade, ductal breast cancers.<span> It has long been noted that loss of BRCA1 activity, either by germ-line mutations or by down-regulation of gene expression, leads to tumor formation in specific target tissues. In particular, decreased BRCA1 expression contributes to both sporadic and inherited breast tumor progression.</span>