I wrote your name in the sky; a cloud removed that. I wrote your name in the sand; the wind blew that away. I wrote your name in my heart; nothing can remove that.

Which of the following descriptions of proteins are true? i. proteins can have different sequences of amino acids. ii. proteins can have different shapes. iii. proteins can have different numbers of amino acids. a. only i and ii are true. b. only ii and iii are true. c. only i and iii are true. d. i and ii and iii are all true. e. none are true statements

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

How many chromosomes are in a human gamete?