One common secondary protein, the alpha helix, forms coils like those seen here. this secondary protein structure can be found in keratin, a component of hair. how are these coils of proteins held together? a) by van der waals interactions eliminate b) by h-bonding between every 4th amino acid c) by oxygen and nitrogen atoms of the backbone that are electronegative d) by the interactions between side chains (r groups) of various amino acids

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

How does a gymnosperm prevent itself from pollinating the same tree

In sweet pea, gene c is responsible for color production and gene p is responsible for the purple color pigment. both of them are located on two different loci on different chromosomes. the flowers will be purple only when the plant has the genotypes as c_p_. no color will be produced with genotypes: ccpp, ccpp, ccpp, ccpp. thus, gene c controls the expression of gene p. what pattern of inheritance is exhibited here? a. pleiotropy b. epistasis c. multiple alleles