Considering the new definition of life, all but one piece evidence supports the fact that a virus must be referred to as an organism. that is:
a) viruses contain nucleic acids.
b) viruses are capable of replication.
c) viruses have a simple cellular structure.
d) viruses have an evolutionary history and that implies lineage.

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.

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?