Across
- 2. selection is the differential survival and reproduction of individuals due to differences in phenotype.
- 3. In genetics, the phenotype is the set of observable characteristics or traits of an organism
- 5. An allele is a variation of the same sequence of nucleotides at the same place on a long DNA molecule, as described in leading textbooks on genetics and evolution
- 7. selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
- 8. a Mendelian gene is a basic unit of heredity and the molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA
Down
- 1. In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA
- 4. In biology, evolution is the change in heritable characteristics of biological populations over successive generations.
- 6. Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix