The answer is letter D. The macronucleus is not exchanged during conjugation. <span>It normally contains the working duplicates/copies of genes necessary to support an enormous cell. Macronucleus is formed by a direct division of the polyploid nucleus right after conjugation then followed by series of internal gene replication that is not oftenly occurring in micronucleuse.</span>
True, depending on which isotope. some Isotopes are deemed extremely unstable and cannot be used for nuclear fuel. however, most are usable
DNA double helix is made of 2 complementary DNA strands . These strands are held together by hydrogen bonding between the complementary bases on each strand.
Nucleotides are the building units of nucleic acids. Bases are components of the nucleotides.
Bases on one DNA strands pairs with bases on the complementary DNA strand through hydrogen bonds.
bases can pair with the complementary base.
Complementary base of thymine is adenine .
Therefore thymine pairs with adenine.
The correct option is B.
The biogeochemical cycle refers to the pathway through which chemical substances are recycle through the biotic and the abiotic components of the earth. There are many types of biogeochemical cycles, examples include: water cycle, carbon cycle, nitrogen cycle, etc.
