Essays on Seed Coat

Purple=dominant White=recessive 5) After looking at the punnett square and using the vocabulary terms above, why were all the offspring in the F1 generation showing the dominant characteristic? Each trait is being controlled by genes. There is one packet that comes from each parent. When TT is crossbred with tt plants, they produce Tt plants in the F1 generation. The F1 plants are all purple because the T allele is expressed in every offspring and it covered up the t allele. 6) Any time you have a capital letter in one or both alleles, the dominant form of the ...

Introduction

Germination is the process by which a plant develops from a seed and grows in optimal conditions where temperature and water available is suitable for the transformation of a seed into a plant. The conditions are favorable when the right balance of air, moisture and temperature are reached that stimulate the seed to come out of hibernation and start sprouting a root and shoot that starts the process of germination(Bewley, J. Derek, et al). Mostly, germination is the growth of embryonic seeds. When a seed is germinating and fertilizing, it produces an embryo where an embryo is present after fertilization and this embryo gets ...

Analytical methods to evaluate seed dormancy in legumes

Abstract Legumes are known to have multiple health benefits. The seed coat in particular contains a number of bioactive compounds which possess antioxidant activity. Of great interest is the relationship between the chemical composition of the seed coat and its role in seed dormancy. Modern technological approaches are currently used to further identify these compounds and determine their role in seed development; these include NRIS FTIR, mass spectroscopy, electron microscopy and chromatography. The following review describes the constituents of the legume seed coat and their respective roles in dormancy and other stages of seed development. The review also highlights ...

Introduction:

Scientists believe that the gymnosperms developed from an extinct phylum whose members reproduced through spores (E. Taylor, T. Taylor, & Krings, 2009). The first true gymnosperms, however, produced seeds instead of spores. As a result, the evolution of the seeds became a fundamental adaptation of the gymnosperms to the dry conditions on land. The second factor that made the group successful on land was the development of pollen grains, which transported and protected the male gametes. Hence, unlike the seedless vascular plants, the gymnosperms became less dependent on the aquatic conditions for the success of fertilization. Instead, they gained the ability to ...

Seeds are fertilized ripe plant ovules that contain embryos and are used either for sowing or for consumption. They can also be defined as units of reproduction of flowering plants that develops into other plants. Seeds come from ripe ovules of gymnosperm (naked seeds) and angiosperm (enclosed seeds) plants after fertilization while others come from the mother plant (Bewley and Black, 1994). Seeds are formed to complete the reproduction process and also to help in the spread of flowering plants. They also help in the spreading or dispersal of plants. When seeds are mature, they are sown while others ...