Adna double helix is 500 nucleotides long, so it contains a total of 1,000 nucleotides between the two strands of the double helix. if 300 of those nucleotides are adenine (a), how many would be guanine (g) g

200

Explanation:

According to Chargaff's rules , Adenine pairs with Thymine and Guanine pairs with Cytosine, so in a DNA double helix the number of A bases equals the number of T bases, and the number of G bases = C bases.

If 300 nucleotides are A, then 300 are also T.

A+T= 600 nucleotides out of 1000, so the remaining 400 must be G+C.

Because the number of G equals the number of C, there must be 200 Guanine nucleotides in that molecule.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

the correct answer is d