Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Types of Ovules
Anatropous
This is the most common type of ovule in angiosperms in which the ovule undergoes curvature such that the micropylar end comes to lie parallel to the funiculus.
Orthotropous
In this type of ovule no curvature occurs and the micropyle lies in a straight line with respect to the funiculus.
Hemi anatropous
The hemi anatropous condition results from the curvature of the ovule such that the micropyle comes to lie at right angles to the funiculus.
Campylotropous
In campylotropous type, the ovule is curved but the curvature is less than that in the anatropous condition.
Amphitropous
The amphitropous ovule looks like the campylotropous ovule at the first glance. But there is a point of distinction. In this type the nucellus and the embryo sac are curved like a horse shoe.
Circinotropous
Besides the above basic forms, another interesting type that you should know is the circinotropous ovule. In the early developmental stages of such ovules the .nucellar protuberance is more or less in line with the axis. In the further developmental stages, due to unilateral growth, it assumes anatropous form. The curvature does not stop at this, but continues until the ovule has turned over completely so that the micropylar end again points upwards. This kind of ovule is common in families Cactaceae and Plumbaginaceae.
Alterations occurring in meat and poultry Meat, as you already know, is rich in proteins and contains most of the essential amino acids. It is also rich in minerals such as c
State the Testing of Ketones in Urine Ketones are also known as ketone bodies. Ketone bodies are catabolic products of free fatty acids and three ketone bodies that can be dete
Plankton - Aquatic Ecosystem This group includes both microscopic plants (phytoplankton) and animals (zooplankton) found in all aquatic ecosystems, except certain swift moving
a) List the a variety of modes of heterotrophic nutrition in plants. b) Define any two modes giving one example of each.
Vasa efferentia are the ductules leading from: 1. Testicular lobules to rete testis 2. Rete testis to vas deferens 3. Vas deferens to epididymis 4. Epididymis to urethra
Explain Ledge bypass - Non-surgical Endodontic Retreatment Ledge bypass - StSt not NiT cause it has shape memory Ledges from outside the curvatures. The file t
Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with sexual reproduction? A reduction to a half of the maximum normal quantity o
what SOAP is: Subjective - The data includes information obtained from the patient or the patient's family regarding the problem. Objective dat a - the data is gathered f
Which of the vertebrate classes (a) are 'warm-blooded', (b) reproduce by laying eggs? (a) Birds and mammals are 'warm-blooded'. (b) Fish, Amphibia, Reptiles
Explain Clear Liquid Diet Clear Liquid Diet: It is composed of foods with low residue content which help to minimize the load of food needing digestion in the int
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd