The primary function of the chromosome is to–

a. store the genetic instructions needed to specify traits.

b. release energy by breaking down food molecules.

c. transport waste materials rapidly out of the cell.

d. relay messages between different cells in animals.

How does the study of genetic disorders such as pku biologists understand normal alleles?

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.

Which individual below would be considered heterozygous? a.dd b.dd c.dd