IT IS NOT POSSIBLE to produce malleable cast iron in pieces having large cross sectional dimension. This is because, iron has a very rapid cooling rate and it will not be possible to achieve this rate at different cross sectional areas in a sheet of iron.
"Mechanical" would be the kind of reproductive isolation among the choices given in the question that has been observed in these two species. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has come to your help.
When a single copy of a disease allele doesn't result in a disease but instead is good for the person or organism that carries it, we say that allele has a heterozygote advantage. In other words this occurs when heterozyhotes have increased fitness over both homozygotes. A good example is sickcle cell trait, which protects against malaria in heterozygotes, but causes a deadly disease in homozygotes.
<u>Answer:</u>
The correct answer option is E. translocation.
<u>Explanation:</u>
Philadelphia chromosome are CML and Philadelphia chromosome-positive ALL are the leukemias that are caused by a mutation.
This type of mutation which occurs in the occurs in the Philadelphia chromosome is called translocation.
Philadelphia chromosome contains a fusion gene which consists of the ABL gene and the BCR gene, producing the BCR-ABL oncogene which has an enzyme with an abnormal tyrosine kinase activity.
