Venus is often called the sister planet of Earth because of its size, mass, and what its material its made of.
This is called a behavioral pattern. This is something deer have learned over time that gives them an advantage in the wild.
A strand of DNA having base sequence as ATG CGA. The complementary strand of DNA will be produced with base sequence as TAC GCT. In the double strand DNA nitrogenous bases paired in a specific manner, A (Adenine) always pair with T (Thymine) with double hydrogen bond or vice-versa and C (Cytosine) pair with G (guanine) with triple hydrogen bond or vice-versa.