Edexcel Biology Unit 2 Quiz

A quick quiz on Unit 2.

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In plant fertilisation, what is produced when one of the male nuclei fuses with the polar nuclei in the ovule?
Endosperm
1 of 9
During Dawid and Sargent's example for differentiation, how is mRNA extracted from the cDNA?
Reverse-Transcriptase reaction
2 of 9
In the mitosis core practical, what is the stain used called?
Toludine blue
3 of 9
Woese (1971) classified animals into three groups: Bacteria, Eukaryota and_____?
Archea
4 of 9
A gene pool is the number of different ______of genes in a population
Alleles
5 of 9
In what stage of mitosis do spindle fibres contract?
Anaphase
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What causes crossing over during meiosis?
Chiasma
7 of 9
In the general classification order, what stage comes after Kingdom?
Phylum
8 of 9
What is the name of the reaction, involving the sperm, during fertilisation in mammals?
Acrosome
9 of 9

Other cards in this set

Card 2

Front

During Dawid and Sargent's example for differentiation, how is mRNA extracted from the cDNA?

Back

Reverse-Transcriptase reaction

Card 3

Front

In the mitosis core practical, what is the stain used called?

Back

Preview of the front of card 3

Card 4

Front

Woese (1971) classified animals into three groups: Bacteria, Eukaryota and_____?

Back

Preview of the front of card 4

Card 5

Front

A gene pool is the number of different ______of genes in a population

Back

Preview of the front of card 5
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Comments

Peter

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Q3/ Or Orecin. 

Iphigenie

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How does a chiasma cause crossing over? I thought it was the point where crossing over occurs?

Ryan Martin

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Iphigenie wrote:

How does a chiasma cause crossing over? I thought it was the point where crossing over occurs?

without chiasma there would be no tension, therefore it is the cause of crossing over. duuuuur.

Ryan Martin

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Iphigenie wrote:

How does a chiasma cause crossing over? I thought it was the point where crossing over occurs?

without chiasma there would be no tension, therefore it is the cause of crossing over. duuuuur.

Ryan Martin

Report

Iphigenie wrote:

How does a chiasma cause crossing over? I thought it was the point where crossing over occurs?

without chiasma there would be no tension, therefore it is the cause of crossing over. duuuuur.

Ryan Martin

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Heather Mc wrote:

Are you sure the cDNA experiment is on the edexcel syllabus? We haven't been taught it and are about to sit the exam :/ love Heather, Jess and Alice xxxxxxxxxx 

Yes it is. pg 128 of Salters-Nuttfield Advanced Biology for Edexcel AS Biology.

Lizzie Keys

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Helpful questions, however, I am possitive that question 8 is incorrect.

Sophie Tindall

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Thanks, this was really helpful :-) Sophie **

Ryan Martin

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Lizzie Keys wrote:

Helpful questions, however, I am possitive that question 8 is incorrect.

I am positive* that it is correct.

sonia

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Question 8 is correct .... thanks for the help! =)

Alfred Dub Hicks

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Question 8 is incorrect chiasma is the point at where the corssing over of sections of DNA occur.

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