A researcher observes a unicellular organism reproducing asexually. The daughter cells are genetically identical except for a few minor variations. Which mechanism is MOST likely responsible for these variations?
Crossing over during mitosis
Independent assortment of chromosomes
Random mutations during DNA replication
Conjugation with another individual
Related Questions
In Mendel's experiments with pea plants, which trait would NOT be considered a dominant trait?
Round seeds
Tall stem
Purple flowers
Wrinkled seeds
Which of the following does NOT align with Mendel's laws of inheritance?
Blending inheritance is observed in the F1 generation.
Alleles for different traits segregate independently.
The law of segregation describes allele separation during gamete formation.
The phenotype of the F2 generation can be predicted using Punnett squares.
Identify the INCORRECT statement regarding Mendel's experiments:
Recessive traits are always expressed in the F1 generation.
Traits are inherited as discrete units.
The F2 generation exhibits a 3:1 phenotypic ratio for a monohybrid cross.
Alleles segregate during gamete formation.
If a homozygous dominant plant (TT) is crossed with a homozygous recessive plant (tt), what percentage of the F2 generation is expected to be heterozygous (Tt)?
25%
50%
75%
100%
All of the following are true about Mendel's law of independent assortment EXCEPT:
It occurs during metaphase I of meiosis
It explains the inheritance of two or more genes relative to one another
It produces new combinations of alleles
It applies only to genes located on the same chromosome
