WorksheetsPopulation Genetics
Total questions: 15
Worksheet time: 15mins
In humans, freckles (F) on the skin are dominant to no freckles (f). If a heterozygous parent and a recessive parent conceive, what is the chances of having a child with NO FRECKLES?
0%
50%
100%
In a population of bees, long wings (L) are dominant over short wings (l). Bees with long wings are ...
heterozygous only (Ll)
homozygous
dominant only (LL)
heterozygous or
homozygous
dominant (LL or Ll)
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?
0%
25%
50%
100%
This is an example of ___________.
Incomplete Dominance
Codominance
In the problem shown, what must the genotype of the missing parent be?
BB
Bb
bb
The different versions of a gene or one of a pair of genes
Dominant
Recessive
Allele
Phenotype
The actual gene makeup of an organism ( Tt)
Genotype
Phenotype
Trait
Characteristic
An organism with two alleles that are the same (TT or tt)
Homozygous
Heterozygous
Trait
Allele
He is known as the "Father of Genetics" and used pea plants because they reproduce quickly.
Robert Hooke
Gregor Mendel
Theodor Swann
Matthias Schleiden
The trait represented by a capital letter
Recessive
Dominant
Phenotype
Incomplete dominance
The trait represented by a lower case letter
Recessive
Dominant
Phenotype
Incomplete Dominance
A feature that has different forms in a population ( CATEGORIES) Examples: Seed color, Eye color
Trait
Characteristic
Allele
Dominant
Which of the following best describes genetic drift in a population?
A random change in allele frequencies due to chance events
A consistent increase in beneficial alleles over time
The introduction of new alleles through mutation
The selection of advantageous traits by natural selection
In a population of rabbits, the allele for black fur (B) is dominant over the allele for white fur (b). If a heterozygous black rabbit (Bb) is crossed with a homozygous white rabbit (bb), what is the probability of obtaining a white rabbit offspring?
0%
25%
50%
75%
Which of the following scenarios is an example of the founder effect in population genetics?
A small group of birds colonizes a new island, leading to a different allele frequency than the original population
A large population of fish experiences a sudden decrease in size due to overfishing
A population of insects develops resistance to a pesticide over several generations
A species of plants undergoes a mutation that results in a new flower color
