MYTUTOR SUBJECT ANSWERS

2058 views

Sexual Reproduction: How does a sperm and egg form a baby?

Once a month, following ripening, a single egg is released from a woman's ovaries during the menstrual cycle, with the hope of fertilisation. During the act of sexual reproduction, the father's sperm is deposited within the mother's vagina in order to penetrate this egg. The sperm use their powerful tails to propel towards the egg, and release enzymes to break down its protective coat. It is essential that only one sperm enters the egg, as only two gametes (1 egg and 1 sperm) can contribute to forming a healthy child. The maternal and paternal DNA is mixed within the egg, and the nucleus of this first combined cell forms. This cell then goes on to divide and multiple in order to form a zygote. Over 9 months this ball of cells develops the features of a foetus whilst in the mother's womb and relies upon maternal nutrients and oxygen to survive. As a result of this amazing biological phenomenon every individual possesses DNA which comes in equal parts from both their mother and father. Which genes we received from which parent depends on properties of meiosis and mitosis, such as independent assortment; topics to be covered in a further genetics tutorial. 

Phoebe V. A Level Biology tutor, GCSE Biology tutor, GCSE Chemistry t...

2 years ago

Answered by Phoebe, who tutored GCSE Biology with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

390 SUBJECT SPECIALISTS

£18 /hr

Rhianna C.

Degree: Mathematics (Bachelors) - Bristol University

Subjects offered:Biology, Maths+ 1 more

Biology
Maths
Chemistry

“I am currently studying Maths at University and absolutely love it! I can't wait to share my enthusiasm with you!”

£18 /hr

Luwaiza M.

Degree: MBBS (Bachelors) - Kings, London University

Subjects offered:Biology, Maths+ 5 more

Biology
Maths
Human Biology
Classical Civilisation
Chemistry
.UKCAT.
-Personal Statements-

“”

Ollie W. GCSE Biology tutor, IB Biology tutor, A Level Biology tutor...
£22 /hr

Oliver W.

Degree: Natural Sciences (Bachelors) - Cambridge University

Subjects offered:Biology, Maths+ 4 more

Biology
Maths
Extended Project Qualification
Economics
Chemistry
-Personal Statements-

“Neuroscience graduate from Cambridge, IB graduate and RAF pilot. Over a year of happy tutoring experience and premium resources included!”

About the author

Phoebe V.

Currently unavailable: for regular students

Degree: Medicine (Bachelors) - University College London University

Subjects offered:Biology, Maths+ 3 more

Biology
Maths
Chemistry
-Personal Statements-
-Medical School Preparation-

“Medical Student at University College London offering excellent tuition in Maths and Sciences as well as Personal Statement development”

MyTutor guarantee

You may also like...

Posts by Phoebe

Genetics: How does our genotype influence our phenotype?

Sexual Reproduction: How does a sperm and egg form a baby?

Other GCSE Biology questions

What is osmosis?

Describe the structure and function of the myelin sheath?

Describe how smoking damages the lungs

If x = 3, what is the value of 2x^2

View GCSE Biology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok