Exam (elaborations)
EDEXCEL BIOLOGY B AS LEVEL JUNE 2023 8bI0 PAPER 1 CORE CELLULAR BIOLOGY AND MICROBIOLOGY
- Course
- Institution
EDEXCEL BIOLOGY B AS LEVEL JUNE 2023 8bI0 PAPER 1 CORE CELLULAR BIOLOGY AND MICROBIOLOGY
[Show more]
Seller
Follow
maryammabruk81
Reviews received
Content preview
STRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGE STRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIPEDEXCEL 2023 papers AND markschemes
...............EASE YOUR REVISION...........................
edexcel june 2023
2
23
OFF THIS PAGESTRIP OFF THIS PAGE
20
2
23
For resources, notes, easier revision
20
email tyrionlay@gmail.com
2
20
, Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Monday 15 May 2023
Morning (Time: 1 hour 30 minutes) Paper
reference 8BI0/01
Biology B
Advanced Subsidiary
PAPER 1: Core Cellular Biology and Microbiology
You must have: Total Marks
Scientific calculator, HB pencil, ruler
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Instructure
question(s) marked with an asterisk (*), marks will be awarded for your ability to
your answer logically showing how the points that you make are related
or follow on from each other where appropriate.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P71924A
©2023 Pearson Education Ltd.
N:1/1/1/1/1/1/
*P71924A0128*
, Answer ALL questions.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 Down’s syndrome is a genetic condition.
(a) Which row in the table describes the cause of Down’s syndrome?
(1)
Type of mutation Result of non‑disjunction
A chromosome monosomy
B chromosome polysomy
C gene monosomy
D gene polysomy
(b) The graph shows the effect of the age of the mother and the order in which
babies are born in a family (birth order) on the incidence of Down’s syndrome.
1000
800
Incidence of 600
Down’s syndrome 40+
per 100 000 live 35–39
400 30–34
births
Age group of
25–29
200 mother
20–24
0 <20
1 2 3 4 5
Birth order
2
*P71924A0228*
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller maryammabruk81. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83516 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now