The development of Ozone, Oxygen, Cyanobacteria <span>factored into the development of complex organisms. The correct option is the last option.
</span>The end of the Paleozoic Era was signaled by mass extinction of land and sea animals. The correct option is the second option.
Reptiles evolved from an ancestor of amphibians that developed an egg with a strong outer shell that kept it from drying out. The correct option is the first option.
Answer:
the water cycle can cause some waters that come from a polluted source to be cycled into aquatic enviroment lowering life quality for the inhabitants. at least i think so
Explanation:
Answer:
The correct answer would be - 100% chances that their child will not have the disease.
Explanation:
Cystic fibrosis is one of the lethal diseases that inherited in an autosomal recessive manner. The Autosomal recessive pattern takes place when the defected gene present in the autosome chromosomes of an individual and only exhibits when both copies of recessive gene present.
The affected person must have two copies of the recessive allele - cc and the gamete he will produce will be - c only, however in the normal person, both copy of allele must be dominant - CC and will produce the gamete - C only.
Then from Punnett square :
C C (normal parent)
(affected parent) c <em> Cc Cc</em>
c <em>Cc Cc</em>
By this, it is established that in case all the offspring will have one copy of dominant and one copy of recessive gene which means 100% chances of carrier child.
Thus, the correct answer would be - 100% chances that their child will not have the disease.
