We can block light by placing obstacles in its path, but it’s much more difficult to block sound. why? a. sound waves are transverse waves. b. sound waves can move through various mediums. c. sound waves have high frequencies. d. sound waves have short wavelengths. e. sound waves have low amplitudes.

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.

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

The basic types of tissue in the human body are