Simple inheritance in animals and plants

?
  • Created by: Hope
  • Created on: 18-04-14 14:08
What is DNA?
A molecule that carrys genetic code and that determines the chacteristics of a living thing
1 of 30
What is a gene?
A section of DNA that has codes for a specific protein
2 of 30
Explain chromosomes
It is made up of large molecules of DNA and has a double helix structure
3 of 30
What is mitosis used for?
Repairing or replacing damaged cells
4 of 30
What cells divide using mitosis>
Body cells
5 of 30
What are chromosomes usually found in, in body cells?
Pairs
6 of 30
What is the first stage of mitosis?
The cell duplicates, The DNA is copied and forms x-shaped chromosomes
7 of 30
What is the second stage of mitosis?
The chromosomes line up at the centre of the cell and the cell fibres pull them apart
8 of 30
What is the third stage of mitosis>
Membranes form around each set of the chromosomes
9 of 30
What is the last step of mitosis?
The cytoplasm divides
10 of 30
What is a gamete>
A sex cell
11 of 30
What type of cell division produces gametes?
Meiosis
12 of 30
What cells divide to form gametes?
Cells in the reproductive organs
13 of 30
What are the female and male reproductive organs?
Ovaries and testes
14 of 30
How many sets of genetic information do gametes contain?
One
15 of 30
What is different between animals and plants in terms of differentiation?
Plant cells retain the ability to differentiate throughout life
16 of 30
What are stem cells?
Cells that can be made to differentiate into many different types of cells
17 of 30
Where are stem cells found?
Human embyros and adult bone marrow
18 of 30
What can stem cells be used for?
Stem cell treatment in conditions such as parkinsons and paralysis
19 of 30
What is meiosis?
When a cell divides to form gametes
20 of 30
What are alleles?
Different forms of a gene.
21 of 30
What can alleles be?
Dominant of ressesive
22 of 30
How many pairs of chromosomes are there in human body cells?
23
23 of 30
What are the two sex chromosomes in males?
XY
24 of 30
What are the two sex chromosomes in females?
**
25 of 30
Complete this sentence: If the charcateristic is controlled by a dominant allele...
It will develop if it is present on one or both chormosomes in the pair
26 of 30
Complete this sentence: If the characteristic is controlled by a recessive allele...
It will only develop if it is present on both of the chromosomes in the pair
27 of 30
What is polydactyly?
An inherited conditions in which a person has an extra finger or toes
28 of 30
What is polydactyly caused by?
By a dominant allele of a gene.
29 of 30
How can someone inherit cystic fibrosis?
Someone can only inherit it if both parents have it
30 of 30

Other cards in this set

Card 2

Front

What is a gene?

Back

A section of DNA that has codes for a specific protein

Card 3

Front

Explain chromosomes

Back

Preview of the front of card 3

Card 4

Front

What is mitosis used for?

Back

Preview of the front of card 4

Card 5

Front

What cells divide using mitosis>

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all DNA and inheritance resources »