Genetics

7. Occurs when a dominant allele completely masks the effects of a recessive allele
8. A part of the ovary of seed plants
12. When an egg and sperm cell combine to develop offspring
14. A certain region of a chromosome that causes protein to be made
17. A square diagram that is used to predict the genotypes of a particular cross
19. The male reproductive organ of a plant
20. A common feature of most cells that is copied when new cells are made
23. Having different alleles for a gene
24. Differences within a trait
25. A type of molecule in our food that our bodies need
27. A trait that is always expressed when present
28. A character or feature of an organism

1. The combination of alleles
2. Having two of the same gene
3. Different forms of genes which can cause different forms of proteins
4. The way an individual looks for a specific trait
5. The study of heredity
6. An original presentation of biological relationships
9. The narrow, tube-like structure that connects the stigma to the ovary
10. An organised profile of an individual’s chromosomes
11. A female reproduction organ in which ova or eggs are produced
13. A common feature inside most cells
15. A form of intermediate inheritance on which one allele for particular trait is not expressed completely over paired allele
16. Molecule that carries genetic information
18. The bulbous top section of a flower’s stamen
21. A permanent change in the DNA sequence of an organism
22. A trait that is always expressed by lowercase letters
25. Female organs of a flower
26. The stalk that supports the pollen bearing anther in the male reproductive organ