{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

A student is modeling the process of meiosis and focuses on the stage where homologous chromosomes exchange segments of DNA. Which statement best evaluates how this specific event contributes to the survival of a population?

It prevents mutations from occurring during DNA replication by proofreading the chromsomes

It increases genetic variation, allowing for a wider range of phenotypes that natural selection can act upon

It ensures that every gamete produced is genetically identical to the parent cell to maintain stability

It reduces the number of chromosomes to ensure the offspring has twice as much DNA as the parents

1

Only one amino acid will change, but the rest of the protein structure will remain functional

The reading frame will shift, likely resulting in a completely different amino acid sequence or a premature stop codon

The mutation will be silent because the genetic code is redundant and multiple codons code for the same amino acid

The cell will immediately detect the error and use mitosis to revert the DNA to its original sequence

1

The trait shows incomplete dominance, where the heterozygous phenotype is an intermediate blend of the parents

The trait is sex-linked and can only be passed from the female parent to male offspring

The trait follows a Mendelian dominant-recessive pattern where red is hidden

The trait is controlled by a single gene that underwent a spontaneous mutation in all offspring

1

Environment alone determines the phenotype, while DNA remains an unused blueprint in most cells

Proteins are converted into DNA sequences when a cell needs to reproduce its genetic material

DNA provides the instructions for building proteins, and the function of those proteins results in observable traits

Phenotypes determine which DNA sequences are created within the nucleus of the cell

1

The ribosome would begin reading the mRNA in groups of two nucleotides instead of three

The mRNA would be converted back into a DNA double helix

The cell would be unable to replicate its DNA for cell division

Amino acids would not be brought to the ribosome, and no polypeptide chain would be formed