Font size
WorksheetsCMS Heredity Mastery Check (8.MS-LS3-4 MA)
Total questions: 10
Worksheet time: 19mins
Jerome crossed two purple-flowered plants. The offspring produced from this cross had either white flowers or purple flowers, as shown in the table below.
Which of the following statements best explains why some of the offspring have white flowers?
These offspring were created by asexual reproduction.
These offspring were produced in a dark environment.
These offspring inherited a DNA sequence coding for white flowers from each parent plant.
These offspring inherited a DNA sequence coding for white flowers from only one parent plant.
Jerome crossed two purple-flowered plants. The offspring produced from this cross had either white flowers or purple flowers, as shown in the table below.
This most likely means that …
… a white flower is a mutation.
… a purple flower is a dominant trait and a white flower is a recessive trait.
… some flowers did not receive enough light.
… all purple-flowered plants have some white color in them.
Jerome crossed two purple-flowered plants. The offspring produced from this cross had either white flowers or purple flowers, as shown in the table below.
Using R to mean the allele for purple and r to mean the allele for white, which of the following Punnett Squares is correctly completed AND best models the outcome of Jerome crossing two purple-flowered plants.
For chickens, a rose comb is a dominant trait and a single comb is a recessive trait.
For a heterozygous rose comb parent and a homozygous single comb parent, which of the following genotypes can the offspring have? (Choose all that are correct.)
RR
Rr
rr
For chickens, a rose comb is a dominant trait and a single comb is a recessive trait.
For a heterozygous rose comb parent and a homozygous single comb parent, what is the likelihood of the single-comb phenotype appearing in an offspring?
0 percent chance
25 percent chance
50 percent chance
100 percent chance
In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species? (Choose all that are correct.)
rr
R
RR
Rr
In the punnett square below, what belongs in the missing square
In sexually reproducing organisms, chromosomes ...
... come in pairs, which may both come from the mother or both from the father.
... come in pairs, one from the mother and one from the father.
... may or may not come in pairs, depending on if the organism is male or female.
... line up in pairs when viewed through a microscope.
Because human sex cells may contain either chromosome out of each of 23 pairs of chromosomes ... (choose all that are correct)
... 50 percent of the offspring's genes are from each parent.
... one set of parents has up to 46 possible combinations of chromosomes in offspring.
... one set of parents has more than 64 trillion possible combinations of chromosomes in offspring.
... the percentage of an offspring's genes that come from one parent or the other can vary.
