These compounds are used to carry out chemical reactions and regulate metabolism in organisms?

What are some possible short and long term medical concerns for crew members on longer space exploration trips

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

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?