Sexual reproduction in animals, Biology

Assignment Help:

Sexual Reproduction

All metazoans, if or if not capable of propagating asexually, produce special cells termed as gametes. The gametes may be either male gametes or sperms or female gametes (ova). Syngamy follows throughout which a sperm fertilizes an ovum producing a zygote. The zygote develops and finally produces an adult. During syngamy, there is doubling of chromosomes; the zygote and its derivative cells are diploid. To prevent repeated doubling of chromosomes, there is meiosis or reduction division during the production of gametes. In this procedure chromosome number is reduced to half (haploid number). The cycle is repeated, and the chromosome number is maintained.


Related Discussions:- Sexual reproduction in animals

LPN, In many tests it is acceptable to read a positive result before the in...

In many tests it is acceptable to read a positive result before the incubation time is completed. why is this not the case with starch agar?

Active instruments-coronal disassembly devices, Active instruments - Do...

Active instruments - Do groove occlusally or buccally until reach tooth structure - Apply this instrument then screw to break the bond between tooth structure and crown GC

State the enzymes utilization in brewing industry, Enzymes utilization in B...

Enzymes utilization in Brewing Industry Here, the main starting material is malt, produced by allowing barley seeds to germinate under moist conditions. The reserve starch is b

PHYLUM MOLLUSCA, How we attempt a question of phylum mollusca?

How we attempt a question of phylum mollusca?

State about the halstead tactual performance test, The Halstead Tactual Per...

The Halstead Tactual Performance Test This procedure used a version of the Seguin-Goddard Form board, but it is done blindfold. The subject's task is to place all the 10 blocks

Explain procedure for checking the presence of rhodamine b, Explain Procedu...

Explain Procedure for Checking the Presence of Rhodamine B? Conduct the experiment following the procedure given herewith: 1. Pour liquid paraffin or mineral oil in a Petri

Haemodynamic study of constrictive pericarditis, Q. Haemodynamic Study of c...

Q. Haemodynamic Study of constrictive pericarditis? Simultaneous right and left heart studies are useful. Due to exaggerated waves in atria, W-shaped atrial pressure tracing wi

Describe in detail about the psychological testing, Describe in detail abou...

Describe in detail about the Psychological Testing Psychological testing is the third source of information about the child, and the source most often equated with neuropsychol

How are the proteins important in metabolism of lens, How are the proteins ...

How are the proteins important in metabolism of lens? Proteins Physical slate of protein is important for transparency of lens. Morner first time classified protein of l

How to measure post repair prv/iv pressure, How to measure Post Repair Prv/...

How to measure Post Repair Prv/iv Pressure ? In the operating room, after coining of1 bypass and before removing cannulae the RV and LV pressures are measured. The pressures ar

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