Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Flashcards GCSE > Genetics > Flashcards

Genetics Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Religious Studies - Eduqas Route A flashcards GCSE Religious Studies - Eduqas Route B flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Geography - AQA flashcards
1
Q

Mitosis = ?

A

the divsion of the parent cell into two genticslly indentical daughter cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

Why do cells replicate their DNA?

A

To produce 2 identical daughter cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why do cells divide?

A
  1. New cells are needed for growth and repair
  2. New cells must have the same genetic information as the original so they can do the same job.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is genetic information found?

A

Nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Meiosis = ?

A

Cell division which produces 4 non identical haploid sex cells or gametes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the adaptations of a sperm cell?

A
  • acrosome
  • nucleus
    -long tail
  • many mitochondria
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the adaptations of an egg cell?

A

Jelly layer
Nucleus
Cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

DNA = ?

A

a chemical which is packaged into long molecules called chromosomes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Gene = ?

A

Small section of DNA which controls something.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Polymer = ?

A

Long molecule made up of many repeating subunits.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does a sequence of 3 bases code for?

A

A particular amino acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the slight difference in genes caused by ?

A

Orders of bases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Extraction buffer = ?

A

Breaks open cell by dissolving cell membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Chilled ethanol = ?

A

Causes DNA to precipitate out because DNA is insoluble in ethanol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What 2 factors causes variation within organisms?

A

Genetics
Environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

2 forms of environmental factors = ?

A

Non living
Living

16
Q

Nature vs nurture

A

Nature = genetic
Nurture = environmental

17
Q

Allele = ?

A

Different forms of a gene

18
Q

Dominant allele = ?

A

Only present on one of your chromosomes

19
Q

Recessive = ?

A

Controls the characteristic which needs to be present on both chromosomes.

20
Q

Heterozygous

A

Carry two different alleles

21
Q

Homozygous

A

Carry two copies of the same allele

22
Q

Phenotype

A

Observable characteristics resulting from genotype

23
Q

Genotype

A

Responsible for a particular characteristic

24
Q

Monohybrid inheritance

A

Study of how the alleles of just one gene are passed from parents to offspring

Flashcards GCSE (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions