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WorksheetsGenetics - bellringer
Total questions: 25
Worksheet time: 50mins
In which part of a leaf cell does photosynthesis take place?
Chloroplasts
Nucleus
Cell Membrane
Cell Walllea
The significant differences between these four dogs were caused by humans. These differences are best explained by the process of
biological adaptation
selective breeding
metamorphosis
regulation
The guinea pigs in a certain population all have black fur. The sudden appearance of a guinea pig with white fur in this population may be the result of
ozone depletion
asexual reproduction
gene mutation
habitat destruction
A small amount of DNA was taken from a fossil of a wooly mammoth found frozen in a glacier. Genetic technology can be used to make a large amount of identical DNA from this mammoth’s DNA. In this technology, the original DNA sample is used to
start differentiation in other mammoth cells
provide fragments to replace certain human body chemicals
act as a pattern for repeated replication of the DNA
start mitosis to get new base sequences
Rr X Rr
100%
75%
50%
25%
100%
75%
50%
25%
RR X rr
Rr X rr
rr X rr
RR X Rr
B = short
b = long
What genotype would a heterozygous short haired guinea pig have?
BB
bb
Bb
What is the genotype ratio for the following cross?
Nn X NN
NN = 100%, Nn = 0%, nn = 0%
NN = 50%, Nn = 25%, nn = 25%
NN = 50%, Nn = 50%, nn = 0%
NN = 25%, Nn = 50%, nn = 25%
What goes in box 15
aabb
AABB
aaBB
AAbb
Which of the following patterns can result in an intermediate trait, such as pink flowers when crossing red and white flowers.
Sex-linked Alleles
Complete Dominance
Incomplete Dominance
Co-Dominance
How is it possible that a child inherits a trait that the parents do not display?
Parents are Homozygous Dominant
Parents are Homozygous Recessive
Parents are Heterozygous, but only show the recessive trait
Parents are Heterozygous, but only show the dominant trait
Sex-linked genetic disorders are more commonly expressed in males.
True
False
Which of the following describes when an organism shows both traits equally at the same time, no blending? Example: AB blood type
Complete Dominance
Incomplete Dominance
Co-Dominance
Sex-Linked
0%
25%
50%
100%
Which statement best explains why people with cancer due to asbestos exposure do not pass the mutation on to their offspring?
The mutation occurred in gametic cells.
The mutation occurred in somatic cells.
The mutation is recessive.
The mutation is sex-linked.
Which of these mutations most likely results in the mutated hemoglobin gene?
A (a) and a (b)
Compared with mitosis, the process of meiosis results in daughter cells that are
Diploid cells with the same number of chromosomes as the parent cells
Diploid cells with a smaller number of chromosomes that the parent cells
Haploid cells with the same number of chromosomes as the parent cells
Haploid cells with a smaller number of chromosomes than the parent cells
