Answer:
500-million-year-old fossil found in BC is ancient ancestor of spiders and scorpions. Palaeontologists in British Columbia have found a fossil of the oldest known ancestor of scorpions and spiders.
For the answer to the question above, I believe the answer is Jammu and Kashmir which is located in the Northern state of India. Located mostly in the Himalayan Mountains. It <span>shares borders with the states of Himachal Pradesh and Punjab to the south</span>
Answer:
The part of the DNA molecule that varies among DNA molecules is nitrogenous bases.
Answer:
Crossing over is the phenomenon by which homologous chromosomes exchange DNA segments between them during the process of meiosis.
If crossing over did not occur, there will be no genetic variation among parents and offsprings.
If the process of meiosis did not occur, there will be lesser chances of genetic variations to occur. Each chromosome will be either from the father or the mother with no genetic diversity present in it. As a result, genetic diversity will reduce.
The answer is D. The formation of protein can be divided into two major parts. First one is transcription which means converting the DNA to the mRNA. This takes place in the nucleus. And then the mRNA will be transported to ribosomes (A is not correct) and be translated to protein. This will take place in the cytoplasm. So the B and C is not correct. Vacuoles are in the plant cells.