Question

In DNA, thymine always pairs with (cytosine / guanine / adenine) and cytosine always pairs with (adenine / guanine / thymine) by forming (hydrogen bonds / covalent bonds / ionic bonds) across complementary strands

Answer 1

Thymine pairs with Adenine

Cytosine pairs with Guanine

Hydrogen bonds

Step-by-step explanation:

Answer 2

The answer is Hydrogen bonds

Hope this helps