Which are major components of ribosomes?

(a) single strands of sugar

(b) dna and proteins

(c) rna and proteins

(d) double strands of nucleic acids

HH x HH, HH x Hh, HH x hh, Hh x Hh, Hh x hh, hh x hh.

Explanation:

In a community in Venezuela, an allele for Huntington’s disease (represented by the letter H) is completely dominant to the allele for no Huntington’s disease (represented by a lowercase h).

The three possible parental genotypes are HH, Hh, and hh.

There are six possible crossings that can be made between these genotypes. These are HH x HH, HH x Hh, HH x hh, Hh x Hh, Hh x hh, hh x hh.

       HH x HH

Genotype: All HH

Phenotype: all express the huntington's disease (prob: 1)

      HH x Hh

Genotype: 1/2HH  1/2Hh

Phenotype: all express the huntington's disease (prob: 1)

     HH x hh

Genotype: All Hh

Phenotype: all express the huntington's disease (prob: 1)

    Hh x Hh

Genotype: 1/4HH, 1/2Hh, 1/4hh

Phenotype: 3/4 express the disease, and 1/4 do not express the disease

    Hh x hh

Genotype: 1/2Hh  1/2hh

Phenotype: 1/2 express the disease, and 1/2 do not express the disease.

   hh x hh.

Genotype: All hh

Phenotype: All do not express the huntington's disease (prob: 1)