Biology 0610: INHERITANCE Topical Past Paper Questions

(a) Figure 4.1 shows a cross between a chicken that is pure-breeding for white feathers and a chicken that is pure-breeding for black feathers. All of the offspring have black and white feathers that are described as speckled. parents offspring Figure 4.1 The allele for white fea…

Fig. 6.1 is a diagram of a cell that shows how DNA is involved in protein synthesis. Fig. 6.1 (a) State the name of the part of the cell that contains DNA. [1] (b) DNA controls cell function by controlling the production of proteins. State the name of one type of protein. [1] (c)…

Fruit flies can either have red eyes or white eyes. This is a sex-linked characteristic with the gene for eye colour located on the X chromosome. The allele for red eyes (R) is dominant over the allele for white eyes (r). A fruit fly with the genotype $ X^{R}X^{r} $ was crossed w…