What would be the result of a cytosine base being substituted for a thymine base in a DNA segment during DNA replication? The cytosine base would pair with adenine when the DNA was replicated.

The sequence could code for the wrong amino acid during translation.

There would be no effect on the DNA.

The entire segment of DNA would be affected

the answer is d.) homologous; have mammary glands

allowed for the prediction of the properties of missing elements.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.