Biology- Genes, Chromosomes and DNA


Flash Cards that are inline with the OCR 21st Century Biology GCSE Unit B1- You and Your Genes
Laura Perry
Flashcards by Laura Perry, updated more than 1 year ago
Laura Perry
Created by Laura Perry over 9 years ago

Resource summary

Question Answer
Where and how is genetic information arranged? The nucleus contains genetic information and it is arranged in chromosomes (long molecules of coiled DNA).
What is a gene and what is its function? A gene is a short length of DNA that codes for proteins, the building blocks of cells.
What are alleles? Alleles are the different variations that genes come in.
Four examples of structural proteins? Skin, hair, blood and cytoplasm.
What kind of proteins are enzymes like amylase? They are functional proteins, they help with digestion.
What is an organisms genotype? The genes that the organism has.
What is an organisms phenotype? The characteristics that an organism displays.
What are the two different factors that affect an organisms characteristics? Genes (dimples or eye colour) and some are environmental (scars).
Give an example of a characteristic that is both environmental and genes? Weight can be affected by both genes and environmental factors.
Show full summary Hide full summary


Edexcel Biology chapter 1
Anna Bowring
GCSE Biology B2 (OCR)
Usman Rauf
C1 Quiz
Leah Firmstone
B7 Quiz - The Skeleton, Movement and Exercise
Leah Firmstone
OCR Physics P2 revision cards
Alex Howard
P2 Quiz
Leah Firmstone
GCSE Physics P7 (OCR) - Light, Telescopes, and Images
Josh Price
Voices and vocal techniques
Rosa Brookes
GCSE Physics P7 (OCR) - Astronomy
Josh Price
GCSE Physics P7 (OCR) - Sun, and Stars
Josh Price
B7.1-3 - Peak Performance