Meiosis 2

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1: Meiosis forms which type of gamate?: Haplod
Diploid
2: What stage of meiosis is this ?: Interphase
Prophase
Metaphase
Anaphase
Telophase
3: Which of the following is a homozygous recessive genotype?: C^a C^A
C^A C^A
C^a C^a
C^A C^a
4: How many genes are being inherited in a dihybrid cross?: One
Two
Four
polyploid conditions
5: Examine the results of the cross below. What percentage of the offspring are heterozygous?: 10%
20%
25%
50%
75%
80%
100%
6: What term describes a length of DNA that codes for the production of a polypeptide?
7: What is another word for crossing over?
8: The child below has Down's Syndrome. This is an example of: A base substitution
A base deletion
A base addition
A gene mutation
A chromosome mutation
9: What term is used to refer to a pair of homologous chromosomes?
10: What word describes the position on a chromosome where a particular gene is found?
11: What general term is given to a substance that increases the probability of a mutation taking place?
12: What stage of meiosis is this ?: Telophase 2
Anaphase 2
Anaphase 1
Telophase 1
Prophase 2
Metaphase 2
Metaphase 1
13: What is a fertilized egg called?
14: Different forms of the same gene are termed this
15: What stage of meiosis is this ?: Prophase 2
Metaphase 1
Telophase 2
Anaphase 2
Anaphase 1
Metaphase 2
Telophase 1
16: At what stage of meosis do homologous chromosomes pair up?: Metaphase 1
Metaphase 2
Prophase 2
Prophase 1
Anaphase 1
Anaphase 2
Telophase 1
17: What term describes a cell that contains three sets of chromosomes?
18: Which term is used to refer to the appearance of an individual?
19: The image below shows the inheritance of the sickle cell gene. If the sickle cell carrier were to reproduce with another sickle cell carrier, what would be the likely proportion of their offspring would show the sickle cell character?: 10%
25%
40%
50%
60%
75%
None
20: Examine the cross below- complete it on paper. What proportion of the offspring are wrinkeld and yellow?: 1 out of 16
2 out of 16
3 out of 16
4 out of 16
7 out of 16
8 out of 16
9 out of 16
21: What proportion are round and yellow?: 1 out of 16
2 out of 16
3 out of 16
4 out of 16
7 out of 16
8 out of 16
9 out of 16
22: What stage of meiosis is this ?: Anaphase 2
Telophase 1
Prophase 1
Metaphase 2
Metaphase 1
Anaphase 1
Prophase 2
23: Consider the following mutation: AGC ACC GCA becomes AGC AGC GCA What type of mutation has occurred?: Base deletion
Base addition
Base substitution
24: Which of the following is a heterozygous genotype?: C^a C^A
C^a C^a
C^A C^A
C^A C^a
25: At what stage of meiosis can crossing over take place?: Prophase 2
Anaphase 2
Metaphase 2
Prophase 1
Metaphase 1
Anaphase 1
Interphase
26: What stage of meiosis is this ?: Prophase 2
Telophase 2
Anaphase 1
Prophase 1
Telophase 1
Anaphase 2
Metaphase 2
27: Coat colour in some hamsters is controlled by two genes on separate chromosomes. The gene for colour can be either B = black or b = white and the gene for coat pattern can be either P = plain or p = mottled. A black, plain hamster (BbPp) was crossed with a white, plain hamster (bbPp). Carry out the cross on paper What offspring ratio for Black Plain:Black Mottled:White Plain:White Mottled will be found in the offspring?: 9:3:3:1
1:1:1:1
2:3:3:1
3:3:1:1
7:2:2:1
28: Blood groups in man are controlled by multiple alleles. Which of the following could not arise from a cross between I^AI^B and I^AI^O: Blood group A
Blood group B
Blood group O
Blood group AB
29: What word describes the chromosomes that are not sex chromosomes?
30: What term best describes the image below?
31: The diagram below shows the lac operon in E. coli. What is the yellow structure that looks like four balls joined together?: A promoter
RNA polymerase
The operator
The regulator gene
A repressor protein
Beta galactose
Lactose permease
32: Which of the following is a structural gene?: The promoter gene
The regulator gene
The Beta galactose gene
33: If a repressor protein is bound to the operator gene: the structural genes can be expressed
the structural genes cannot be expressed
34: If a repressor protein is not bound to the operator gene: the structural genes can be expressed
he structural genes cannot be expressed
35: In the presence of lactose: the repressor protein binds onto the operator gene
RNA polymerase is destroyed
the repressor protein changes shape and can no longer fit on the operator gene
RNA polymerase is not allowed into contact with the promoter gene