Suppose a new species of bacterium is discovered. t contains a form of dna pol ili that can add new nucleotides to either the 5 end or the 3' end of an existing strand all other properties of the enzyme remain unchanged how would dna replication in these bacteria differ from normal replication? a. helicase would no 1onger be required for replication. b.both new strands could be synthesized continuously like the leading strand. c.dna gyrase would no longer be required for replication. d.the same polymerase molecule could synthesize both strands at the same time.

Both new strands could be synthesized continuously like the leading strand

Explanation:

The DNA pol III is an enzyme that can add nucleotides to create the new DNA strand while reading one of the main strands of DNA from 3' to 5'. This new type of DNA pol III that can add nucleotides to either the 5' or the 3' end will make two continuous strands as when the DNA pol III reads the DNA from 3' to 5' and not one continuous and one discontinuous strand as when the normal DNA pol III reads the strand from 5' to 3'.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation: