NEW
Font size
WorksheetsCheckpoint 5 Review
Total questions: 16
Worksheet time: 48mins
All the cells in your body have the same DNA. Why do some look different and have different functions?
Because their DNA has been extremely mutated.
Because only certain genes are being expressed.
All cells look the same and have the same function. This is a trick question.
Chargaff's rule states that adenine must pair with thymine and cytosine must pair with guanine. If a DNA molecule contains 35 Adenine bases, how many Thymine bases will be needed?
60 Thymine bases
40 Thymine bases
35 Thymine bases
20 Thymine bases
What do all cells have in common?
DNA (Genetic material)
Chloroplasts
Cell Wall
Circular DNA
Natural selection is known as
family descent
survival of the fittest
convergent evolution
divergent evolution
If I wanted to look at DNA to study the evidences of evolution, I am using what evidence?
comparative anatomy
embryology
fossil record
molecular homologies
Short = S
Short = t
Short = T
Short = tt
What are the phenotype percentages of the offspring?
(A-Brown fur color; a-white fur color)
50 % Brown fur and 50% White fur
25 % Brown fur and 75% White fur
75 % Brown fur and 25% White fur
0% Brown fur and 100% White fur
This image is an example of:
genetic drift
gene flow
A population of flowers on one side of a river transports pollen to flowers on the other side of the river
Gene Flow
Genetic Drift
In humans, the haploid number of chromosomes is ____.
23
46
69
92
In meiosis, crossing over of chromosomes in Prophase 1 results in --
Identical cells
5 diploid cells
genetic variation
genetic drift
