What determines the similarities in anatomical or physical features among organisms a. location on earth b. environment conditions. c. predator-prey relationships chromosomes and genes

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

Aboy with an extra x chromosome probably has which of the following syndromes?

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation