Answer:
The virus integrates into long-lived immune system cells and remains dormant in those cells for many years.HIV's ability to hide its instructions inside of cells where drugs cannot reach it.
Answer AND Explanation:
Let H be for normal blood clotting gene.
XH Xh
XH XHXH XHXh
Y XHY XhY
The probability of the couple having a hemophilia sex-linked trait is 25% and 75% for normal children.
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The transcription consists of RNA synthesis. It is performed by an enzymatic complex whose key enzyme is RNA polymerase, composed of several subunits and that performs the polymerization of RNA from a DNA mold.This process occurs in three main stages, initiation, elongation, and termination, each containing specific factors .
Answer:
Gene mutations provide new alleles, making these mutations the ultimate source of variation. A gene mutation is an alteration in the DNA nucleotide sequence, producing an alternate sequence, termed an allele. Mutations occur at random, and can be beneficial, neutral, or harmful.
Explanation:
Answer:
overies
ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The fertilized egg then moves to the uterus, where the uterine lining has thickened in response to the normal hormones of the reproductive cycle
