Genetic Linkage

Quiz
•
Biology
•
9th - 12th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which conclusion is a result of Thomas Hunt Morgan’s research with fruit flies?
Chromosome assortment during meiosis is not random.
Linked genes are located on the same chromosome.
The physical distance between genes can be determined.
Genes recombine independently during mitosis.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which observation of Morgan’s is evidence that crossing over occurs?
Linked genes are sometimes inherited separately.
Some dominant traits are always inherited together.
Inheritance of gene combinations is not random.
Fruit flies have only two groups of linked traits.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two genes on a given chromosome that are most likely to be inherited together are
6.8 map units apart.
10 map units apart.
2 map units apart.
18.5 map units apart
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose that the distance between two genes on a linkage map is 7 units. The cross-over frequency between the two genes is
0.7%
7%
70%
700%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose the cross-over percentages for three gene pairs are: A to B = 9.5%, B to C = 14.5%, and A to C = 5%. Which of the following sequences could represent the order of these genes on a chromosome?
CAB
ABC
CBA
ACB
Tags
NGSS.HS-LS3-3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the distance between A/B is 0.12 mu and gene C is on the opposite side of A with respect to B at a distance of 0.23 mu, Which is the central gene in this map
B
A
C
Data insufficient
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the distance between A/B is 0.12 mu and gene C is on the opposite side of A with respect to B at a distance of 0.23 mu, What is the order of the gene linkage map
both A - B - C and C - B - A are possible
A - B – C
C - A – B
The linkage map cannot be detemined as the ratio is not 1:1
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