4) The C locus in maize is involved in kernel color production. Cleads to production of blue pigment; cc gives colorless
Posted: Tue May 17, 2022 2:25 pm
4) The C locus in maize is involved in kernel color production. Cleads to production of blue pigment; cc gives colorless kernels. Consider two maize plants: a. Genotype c/cDs ; Ac/Act, where CDs is an unstable allele caused by Ds insertion b. Genotype C/Ac; Ac+/Act, where ac is an unstable allele caused by Ac insertion Act denotes absence of Ac. What kernel phenotypes would be produced and in what proportions when: 1) Plant a is crossed with a stable recessive loss-of-function mutant c/c ; Ac+/Act. Indicate what is the kernel color and what color are the spots, if applicable. Provide an explanation for each phenotype. 2) Plant a is crossed with plant b? Indicate what is the kernel color and what color are the spots, if applicable. Provide an explanation for each phenotype. Assume that Ac and care unlinked, that the chromosome-breakage frequency is negligible, and that Ac does not produce new cac alleles.