Genetics, DNA and Evolution

4. The passing of traits from parents to offspring
5. a molecule made of a nitrogen base, a sugar, and a phosphate group.
9. A genetic factor that is blocked by the presence of a dominant factor
10. Monk who had an interest in how traits are inherited, Father of Genetics
12. a characteristic of a species that enables the species to survive in its environment
14. Plants with 2 different forms (alleles) of the same trait
15. tool to determine the possible combinations of allele in a genetic cross
17. the ratio of the offspring’s genotype
19. When the two alleles of a gene are the same
20. A genetic factor that blocks another genetic factor
21. The breeding of organisms for desired characteristics

1. The resemblance of one species to another species
2. The different forms of a gene
3. The observable traits of an organism
6. A change in the nucleotide sequence of a gene
7. shape of DNA
8. When the two alleles of a gene are different
11. the process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variations
13. deoxyribonucleic acid
15. the ratio of the offspring’s phenotype
16. an adaptation that enables species to blend in with their environments
17. The genetic factors that an organism has for a specific trait
18. proposed the theory of evolution by natural selection