MYTUTOR SUBJECT ANSWERS

368 views

How can two brown-eyed parents produce a blue-eyed offspring?

If both parents are heterozygous (xX) and the blue allele (x) is recessive to the dominant brown allele (X), the offpring has a 1/4 chance of getting homozygous recessive alleles (xx).

If one or more of the parents are homozygous dominant (XX), the genes could be mutated (insertion, deletion, substitution) before it is passed on to the offspring, preventing it from from being expressed, producing a recessive phenotype in the offspring and potentially a new allele of the gene.

Jeffrey D. GCSE Biology tutor, A Level Biology tutor, 13 plus  Biolog...

1 year ago

Answered by Jeffrey, an A Level Biology tutor with MyTutor


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

150 SUBJECT SPECIALISTS

£20 /hr

Laura M.

Degree: Medicine (Other) - Bristol University

Subjects offered: Biology, Maths+ 5 more

Biology
Maths
Geography
Chemistry
.UKCAT.
-Personal Statements-
-Medical School Preparation-

“About me: I am a friendly and enthusiastic fourth year medical student studying at the University of Bristol. I found myself enjoying Maths and Sciences from an early age and eventually decided that it was my calling to be a doctor. W...”

£20 /hr

Georgina H.

Degree: Marine Sciences (Doctorate) - Newcastle University

Subjects offered: Biology, -Personal Statements-

Biology
-Personal Statements-

“About me I am currently in my first year of my PhD at Newcastle University. From a young age, I have always been captivated by science and the natural world, which in turn has inspired me to pursue a doctorate degree in Marine Scien...”

£24 /hr

Julia M.

Degree: Sustainable Agriculture and Food Security (Masters) - Edinburgh University

Subjects offered: Biology, Maths+ 1 more

Biology
Maths
Chemistry

“Hi there friend!  The way the world around us works is absolutely fascinating - and that's what science aims to understand. Of course, when faced with long equations and new concepts, conquering science can seem much more daunting tha...”

About the author

Jeffrey D.

Currently unavailable:

Degree: Molecular Biology (Doctorate) - Imperial College London University

Subjects offered: Biology, Physics+ 3 more

Biology
Physics
Music
Maths
Chemistry

“About Me: I got my BA in Biological Sciences from Oxford Univertity and have been tutoring privately for the past 4 years in London while working on my PhD in Molecular Biology. I'm passionate about science and love to share this wit...”

You may also like...

Other A Level Biology questions

what is the difference between homoeostasis and haemostasis

Why may a rise in testosterone above normal cause a subsequent decrease in the hormone?

Explain how DNA is converted into protein in eukaryotes.

How do muscle fibres contract?

View A Level Biology tutors

Cookies:

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

mtw:mercury1:status:ok