Color-blindness is a sex-linked recessive trait. a color-blind mom and a color-seeing dad have children. in the punnett square, the r represents the dominant allele of seeing color and the r represents the recessive allele of color-blindness.

The answer should be 50% assuming that the dad has one recessive trait. If the dad has no recessive trait then it would be 0%. but most likely its 50%.

Hope this helps :)

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.