BIOL 120A Chapter 13: Chapter 13 Detailed Notes
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The fruit is a pod, or legume, with one row of seeds the seeds contain two prominent food-storing cotyledons. The high protein content of legumes is correlated with the presence of root nodules, which contain the nitrogen-fixing bacteria. To most people the word legume brings to mind beans and peas these are some of the oldest and most common food crops. Cytoplasmic inheritance in which genes outside the nucleus code for traits. Since it is the egg, not the sperm, which passes on its cytoplasm and organelles to the zygote, genes are passed down through the maternal parent. The peanut, arachis hypogea is one of nature"s more unusual plants. After pollination, the flower stalk elongates downward, pushing the developing fruit into the soil. Two varieties commonly grown in the united states are the larger- seeded virginia peanut and the smaller-seeded spanish peanut, which has a slightly higher oil content.
