Albinism is a recessive trait characterized by an absence of pigment melanin responsible for skin and hair color. Actually, albinism is caused by a defect in gene for enzyme which synthesizes melanin. The central dogma of molecular biology explains that the sequence of DNA specifies the sequence of mRNA, which, further, specifies codes for the sequence of proteins. Since a gene is a segment of DNA, altered gene will cause altered mRNA which will cause altered protein. Thus, <span>defect in gene for enzyme which synthesizes melanin will cause the absence of melanin and consequently, albinism.</span>
Unit 3 Lesson 6: chordate evolution and diversity quick check answers.
1. B
2. D
3. B
4. B
5. B
Xylem and phloem
hope u got it right
It pulls towards it until it gets to a certain point and pushes away and so it stays in a steady orbit
