True or false a cross between a pea plant purebred for inflated pods and a pea plant purebred for constricted pods would only produce would only produce inflated pod offsprings

True

Explanation:

In pea plants, inflated pea pods are the dominant trait, whereas constricted pea pods are the recessive trait.

If a plant is purebred for inflated pods, it means it is homozygous for the dominant trait (e.g. PP). If a plant is purebred for constricted pods, it means it is homozygous for the recessive trait (e.g. pp).

Each offspring inherits one allele from each parent, meaning they have to inherit a P allele from the inflated pod parent (because that is all they have to pass on), and they have to inherit a p allele from the constricted pod parent (because that is all they have to pass on).

Therefore all offspring will be heterozygous Pp. Becauese inflated pods are dominant, all offspring will be inflated pod offspring and the answer is true.

In the α helix structure, there is a hydrogen bonding between oxygen atom in a carbonyl of one amino acid and the hydrogen atom of the amino group that is situated four residues farther along the polypeptide chain

Explanation:

The common secondary structure of protein are: α helix and β pleated sheet

α helix is a rod like structure. It is a right handed coil of amino acid residue on a polypeptide chain, which may be 4 units or 40 units long. The coil is held together by hydrogen bond between oxygen atom in a carbonyl of one amino acid and the hydrogen atom of the amino group that is situated four residues farther along the polypeptide chain. This means that every complete turn of the helix is only 3.6 residues.