In sea sponges, reproduction can occur both asexually and sexually, resulting in different ways genetic material can be passed from parents to offspring.
Offspring from Asexually Reproducing Parent with tt Genotype:
Since asexual reproduction results in offspring that are genetically identical to the parent, all offspring from a tt genotype parent will also have the tt genotype.
- Possible offspring genotype(s): tt
Offspring from Sexually Reproducing Parents with Tt Genotypes:
When both parents have the Tt genotype, the possible combinations of their alleles can be determined using a Punnett square. The combinations would be:
- TT (homozygous dominant)
- Tt (heterozygous)
- Tt (heterozygous)
- tt (homozygous recessive)
This results in the following potential offspring genotypes:
- Possible offspring genotype(s): TT, Tt, tt
Summary:
- Asexual reproduction from a parent with tt → tt (all offspring)
- Sexual reproduction from parents with Tt → TT, Tt, tt (three possible genotypes)