Gregor Mendel studied the following characteristics in pea plants:
1. Flower color - purple as dominant, white as recessive
2. Flower position - axial as dominant, terminal as recessive
3. Seed color - yellow as dominant, green as recessive
4. Seed shape - round as dominant, wrinkled as recessive
5. Pod shape - inflated as dominant, constricted as recessive
6. Pod color - green as dominant, yellow as recessive
7. Stem length - tall as dominant, dwarf as recessive
Campbell, Neil A., et al. Biology. 8th ed. San Francisco: Pearson Benjamin Cummings, 2008. 265. Print.
Gregor Mendel studied seven traits in pea plants. These traits were flower color, flower position, seed color, seed shape, pod color, pod shape, and plant height. Mendel's work with these traits laid the foundation for the field of genetics.
more than 30 years after his death
Gregor Mendel chose the pea plants for his experiments because the garden pea is an ideal subject in the study of genetics for the following reasons:-- presence of observable traits with contrasting forms-- produces many offspring in one cross-- short life cycle-- ease in manipulating pollination (cross pollination)Pea plants had the following chacracteristics:plants were sexually reproducing with bisexual flowersself pollination and self fertilization is possiblethe life cycle was completed in one seasonhybrids were perfectly fertilemany varieties with well-defined characters were available i.e. presence of seven pairs of contrasting or allelomorphic charactersPea plants (leguminosae) have an irregular flower in which the top part of the corolla is much larger than the lower part (Hitchcock and CronquistFlora of the Pacific Northwest p228). If you haven't ever seen a pea flower, it looks much like a snap dragon bloom. This feature keeps the flowers from freely pollinating each other by wind, as they are tightly shut. If protected from pollinating insects, they will only self pollinate, or if the anthers are clipped off they can be very selectively pollinated by a person. This gave Mendel much tighter control over the crossbreeding of the plants.Because pea plants are easy to propagate and have 7 observable traits like Seed Shape, seed color, Seed coat color, pod shape, flower position and stem lengthThis can be speculated, but pea plants were probably picked because of their ability to reproduce quickly. If Gregor Mendel had used an animal, he would have had to wait many years before being able to study the passing on of traits.He chose them because they are quick and easy to grow and several peas are produced in each pod. It is fortunate that he chose the plant that he did, and that he chose the characteristics he did to observe. Some plants would have been much more difficult to work with.
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Independent assortment can take place only if genes are located on different homologous chromosomes .Mendel was lucky because 7 traits he studied were located on different homologous chromosomes .Bateson 1906 noted first deviation from Mendles law and it was explained by Morgan . Linked genes can't assort independently as they are transfered en block .
Gregor Mendel studied seven traits in pea plants. These traits were flower color, flower position, seed color, seed shape, pod color, pod shape, and plant height. Mendel's work with these traits laid the foundation for the field of genetics.
Gregor mendel won the superbowl 3 times in a row on different teams. then he played baseball and won 2 world series on the astros. after that he went to the celtics and broke 7 records and won the NBA finals 12 times.
Gregor Mendel studied seven different traits in pea plants, but these traits were not necessarily found on seven distinct chromosomes. Instead, each trait is controlled by genes located on different chromosomes, and the principles of Mendelian genetics apply to the inheritance of these traits independently of their chromosomal location.
Gregor Fisher is 5' 7".
Gregor Schlierenzauer was born on January 7, 1990.
Gregor Schlierenzauer was born on January 7, 1990.
Manfred Gregor was born on March 7, 1929, in Tailfingen, Baden-Wrttemberg, Germany.
Maria Mendel was born on August 7, 1956, in Warsaw, Mazowieckie, Poland.
Gregor Blanco wears No. 7 for the San Francisco Giants.
He wondered if testing for two separate characteristics would cause them to somehow interact. This law only applies when two traits are tested like seed color and texture. Traits are independent ONLY if they occur on separate chromosomes. Lucky for Mendel that the 7 traits he tested all occurred on 7 separate chromosomes.
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