How to calculate megabytes? [closed]

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I'm doing an exercise. But I'm confused on how to calculate the megabytes

A “genome” can be represented as a sequence of “bases”, each of which can be encoded as a two-bit value. Assuming that a megabit is 1,000,000 bits, how many megabytes are required to encode a 16 million base genome?

Answer 1

The line about "a megabit is 1,000,000 bits" seems to suggest:

• 8 bits in a byte
• 1,000 bytes in a kilobyte
• 1,000 kilobytes in a megabyte

Therefore:

• 1,000,000 bytes in a megabyte; or
• 8,000,000 bits in a megabyte

Answer 2

16mln * 2 bit / MB = 32 MBit / MB = 32 MB / 8MB = 32 / 8 = 4

Answer 3

1 byte = 8 bits. Today, at least.