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WorksheetsMendel and Meiosis
Total questions: 60
Worksheet time: 3600secs
Which is the Dominant Allele in a genotype?
a capital letter
a lowercase letter
a number
the most common version in a population
Which Combination is Heterozygous
AA
Aa
aa
none of the above
Which of the following cell types is formed by meiosis?
muscle cells
skin cells
sperm and egg cells
blood cells
Another word for heterozygous is
purebred
hybrid
dominant
recessive
A diploid carrot cell has 18 chromosomes, so the haploid carrot pollen grain contains
18 chromosomes
9 chromosomes
27 chromosomes
None of the above
Which stage of meiosis is represented in Figure 6.5?
anaphase I
metaphase I
anaphase II
metaphase II
Which is the best description of the events that take place during anaphase II?
the replicated chromosomes become visible
homologous chromosomes line up along the equator
sister chromatids are separated and pulled to opposite sides of the cell
homologous pairs are separated and pulled to opposite sides of the cell
What is the role of the spindle fibers?
to join homologous chromosomes together
to store nucleotides prior to DNA synthesis
to initiate the formation of the nuclear membrane
to move chromosomes in the cell
The typical human body cell contains 46 chromosomes. How many chromosomes are found in a typical human sperm?
23
45
46
92
During which phase of meiosis do homologous pairs of chromosomes line up next to one another along the equator?
anaphase I
metaphase I
prophase II
metaphase II
A true-breeding tall pea plant is crossed with a true-breeding short pea plant, and all the offspring are tall. What is the most likely genotype of the offspring assuming a single-gene trait?
tt
Tt
TT
TT or tt
If two heterozygous individuals are crossed, what percent of their offspring are also expected to be heterozygous?
0
50
75
100
The fusion of haploid gametes is called
gametogenesis
meiosis
reassortment
fertilization
In a genotype for plant height, such as Tt, what does each letter represent?
one genome
one gene
one allele
one gamete
Crossing over is an important factor in increasing the
likelihood of gene linkage on homologous chromosomes
frequency with which a recessive allele is masked
genetic diversity by making new allele combinations
frequency with which a dominant allele is expressed
In the pea Punnett Square, what is the dominant trait?
yellow peas
green peas
parent 1
parent 2
What are the chances that two white flower (pp) pea plants could produce a purple flower pea plant?
0%
25%
50%
75%
(E= 3 eyes, e= 1 eye)
Who is Gregor Mendel
an Austrian Monk from the mid 1800s who contributed to the study of Genetics
The scientist who discovered the structure of DNA
a British scientist who discovered penicillin
The scientist who used X-Ray Crystallography to shed light on the structure of DNA
What did Gregor Mendel study?
Mold Spores
Pea Plants
Sun Flowers
Rats
In the punnett square, what is the probability for white fur?
