i think its true.......i guess
<span>The correct answer is b. will have a one-quarter chance of being a sickle-cell-free homozygote.</span>
<span>Sickle-cell disease is an autosomal recessive disease, which means that <span>if two individuals who are heterozygous for the sickle-cell disease have child, there is a 25% chance of sickle-cell disease, 25% that the child will not carry any sickle-cell alleles, and 50% that it will have the heterozygous condition (will have an allele for disease).</span></span>
Answer:
I think its D sorry if you get it wrong
<span>Varicella is an acute infectious disease. It is caused by varicella-zoster virus (VZV), which is a DNA virus that is a member of the herpesvirus group. After the primary infection, VZV stays in the body (in the sensory nerve ganglia) as a latent infection. </span>