Tiles:
obligate parasitism
Pairs: predator and prey
a freshwater amoeba feeds on bacteria in the water
As parent's genotypes are missing here, alleles cannot be estimated in offspring, but it is possible to use the example above to estimate it.
<h3>What is a Punnett square?</h3>
A Punnett square is a diagram used in genetics to estimate genotypic and phenotypic frequencies in offspring from a given genetic cross.
In order to estimate offspring allele frequencies, we need to know parental genotypes by means of a Punnett square.
For example, if both parents are heterozygous for a gene whose alleles are called 'A' and 'a', the Punnett square in offspring is:
A a
A AA Aa
a Aa aa
In this case, 50% of offspring will be heterozygous (genotype 1/2 Aa), whereas 25% will be homo-zygous dominant (1/4 AA) and 25% will be homo-zygous recessive (1/4 aa).
In conclusion, as parent's genotypes are missing here, thereby alleles cannot be estimated in offspring, but you can use the example above to estimate it.
Learn more about the Punnett square here:
brainly.com/question/3522181
#SPJ1
In parasitism, one organism harms another organism (the host). An example would be fleas living in cats/dogs; they feed on their blood.
Therefore the answer is A is harmed, and B is helped.
