11 question (biology)

1.suppose you are studying a fruit fly’s dna and you discover a gene for antenna length on chromosome 2. what word describes its location, and where would it be found in other fruit flies’ dna?
2.explain why an organism’s genotype may be homozygous dominant, homozygous recessive, or heterozygous, but never heterozygous recessive.
3.if a recessive allele an organism reproduce, but the dominant allele hinders reproduction, which will be more common in a population?
4.cystic fibrosis is a recessive disease that causes the production of abnormally thick, life-threatening mucus secretions. what is the genotype of a person with cystic fibrosis: cc, cc, or cc? explain.
5.what do the grid boxes in a punnett square represent?
6.why does the expected genotypic ratio often differ from the expected phenotypic ratio resulting from a monohybrid cross?
7.if you are working with two tall pea plants and know that one is tt, how could you determine the genotype of the other plant?
8.how did mendel’s dihybrid crosses him develop his second law?
9.what would be the phenotypic ratios of the offspring resulting from the following cross: yyrr x yyrr? (complete this punnett square on a separate piece of paper) 10.you have seen that one quarter of offspring resulting from two heterozygous parents are homozygous recessive. yet for some genes, the recessive allele is more common in the population. explain why this might be.
11. suppose you work for a company that sells plant seeds. you are studying a plant species in which the dominant phenotype is pink flowers (pp or pp). the recessive phenotype is white flowers (pp). customers have been requesting more plants with pink flowers. to meet this demand, you need to determine the genotypes of some of the plants you are currently working with. what is the genotype of each plant?