Dna replication occurs by the addition of nucleotides to the end of the dna molecule. results in the formation of four new dna strands. produces two daughter dna molecules that are complementary to each other. uses each strand of a dna molecule as a template for the creation of a new strand. begins when two dna molecules join together to exchange segments.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.