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!
Q. What is the difference between sexual gametes and spores? Do humans present sexual gametes or spores?
Sexual spores are structures generated from meiosis with ploidy number of chromosomes reduction to a half compared to the spore mother cell. Spores germinate give existence to gametophytes individuals that by mitosis form gametes. The meiosis that generates sexual spores is called sporic meiosis it is, for instance, the type of meiosis that occurs in plants.
Gametes are also cells with half the number of chromosomes of the normal cell of the species but they are specialized in fecundation the fusion with another gamete that generates the zygote a cell with double the number of chromosomes than gametic cells. Mitosis in gametophytes originated from sexual spores or by Gametes can appear from gametic meiosis.
In humans as well as largely in animals the meiosis is gametic. There are no alternations or spores of generations. The female gamete is the egg cell and the male gamete is the sperm cell.
PO L YIN V AGIN A TIO N OR INGRESSION - This is found in discoblastula and periblastula. In it the blastomeres of the blastoderm divide and form new blastomeres wh
Based on your reading of the article "The Inner Life of the Genome" which of the following is a wrong statement regarding the organization of chromosomes within the nucleus? A.
What is Phylum Nematoda - Roundworms? Nematodes are commonly known as the roundworms. They have a pseudocoelom type of body cavity, and they have a digestive tract that opens t
Energy Input in Ecosystem Survival and functioning of ecosystem is dependent on the input of energy. Continuous availability of energy is essential for supporting diverse ecos
Define Signs and symptoms of iron deficiency anaemia? Since the level of haemoglobin is reduced in the blood, it causes paleness (pallor) on certain parts of the body. Initiall
Define drug effects on Carbohydrate metabolism? Carbohydrate metabolism: Hypoglycemic drugs such as insulin and sulphonylureas are prescribed because of their ability to increa
An alternative approach has been to identify areas with the highest number of endemics or species with a restricted geographical range. Assessments of this nature have been very of
C o n t a g i o u s bovine pleuropneumonia It is a disease of bovines characterized by high rise of body temperature and difficulty in respiration. E t iolo
Shift of the phosphate group from carbon 3 to carbon 2 Shift of thephosphate group form carbon 3 to carbon 2: This reversible reaction is catalyzed by phosphoglycerate mutas
Write an essay on cytological approach in taxonomy.
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