Explain how two pea plants with round yellow peas can, when crossed, produce off spring with the recessive traits—green wrinkled peas. use a punnett square in your explanation.

To produce the recessive phenotype both parents must be heterozygous for the dominant phenotype!!

A two hybrids can produce offspring that will show the recessive trait.

RrXRr  would produce RR, Rr and rr

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.

In some developing nations the percentage of the animal protein from fish in the diet can be as high as 25 percent.  about 85% of fish caught is used for human consumption.  the remainder is converted into fishmeal and fish oil.