Aperson with a genotype of hbss has sickle cell disease. a person with a genotype of hbas allele carries the sickle cell trait. a person with a genotype of hbaa does not have sickle cell disease and does not carry the trait. the punnett square shows the genotype of two people carrying the sickle cell trait. hb a s a aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%

25%

Explanation:

Phenotypic ratio of progeny = 3 normal : 1 affected.

So, 25% of the progeny is affected with sickle cell anemia when two carrier people serve as parents.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds