Monocotyledonous embryo, Biology

Assignment Help:

Monocotyledonous Embryo

The early development of the proembryo in monocots follows the same pattern as in the dicots. However, at the time of differentiation in the globular proembryo certain fundamental differences arise. In monocots one half of the terminal cell and its derivatives have retarded growth, whereas the other half grows rapidly to form one cotyledon.

As a result of this asymmetric growth, in later stages the stem tip, which is also derived from the terminal cell, appears to be lateral in position The major differences between the dicot and the monocot embryos arise due to disparity in the number and position of the cells of the terminal quadrant of the proembryo which contribute to the formation of the cotyledonary and epicotyl regions. In the dicotyledons derivatives of the two opposite cells of the terminal quadrant give rise to the two cotyledons. Among the monocotyledons the number of cells of the quadrant that contribute to the cotyledons varies.


Related Discussions:- Monocotyledonous embryo

Nuclear run-on, Nuclear run-on is a technique used to estimate the relativ...

Nuclear run-on is a technique used to estimate the relative rate of the transcription of a given gene, as opposed to steady-state level of the mRNA transcript (which is influenced

Reducing pollution - conservation of wildlife, Reducing Pollution - Conserv...

Reducing Pollution - Conservation of wildlife As you already know, pollution of various kinds has affected the survival of living beings, particularly the wildlife in various

What capacity of hemoglobin include, Manifestations of anemia that are dire...

Manifestations of anemia that are directly due to the diminished oxygen-carrying capacity of hemoglobin include: Answer A. pale skin. B. bleeding. C. bone pain. D. fatigue.

Define surface properties of proteins, Define Surface properties of Protein...

Define Surface properties of Proteins? The surface properties relates primarily to surface tension, emulsification and foaming characteristics of proteins, which are discussed

Applications of transgenic animals, A pp l i c a tion s of transgeni...

A pp l i c a tion s of transgenic animals Current applications of gene transfer in farm animals include the improvement of product quality and quantity, disease resistan

Why is the development of bipedalism considered, Why is the development of ...

Why is the development of bipedalism considered to be a major advancement in human evolution?

Systems of classification plants, Q. Can you show the Systems of classifica...

Q. Can you show the Systems of classification plants? The development of angiosperm classification has been one of the most fascinating subject. A study of sequential events le

Define intra enterocyte transport - non-haem iron absorption, Define Intra ...

Define Intra enterocyte transport - non-haem iron absorption? Intra enterocyte transport: In the enterocyte, the absorbed iron can have one of the following metabolic fates:

Define how to prevent the cancer, Define How to Prevent the Cancer? A c...

Define How to Prevent the Cancer? A continuing and urgent need is there to take all steps to prevent cancer. Cancer rates are set to increase another 50 percent by the year 202

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd