Question

1. Choose the false statement:

Group of answer choices

When eukaryotic organisms reproduce from one generation to the next, mutations play a far more important role as a source of genetic variation than does recombination.

One of the trends leading up to the evolution of early eukaryotic cells is a much-expanded genome and a shift from a haploid to a diploid amount of DNA.

The endosymbiotic theory supports the idea that mitochondria and chloroplasts were once free-living prokaryotic cells; this accounts for why these organelles contain DNA organized as a circular loop and ribosomes akin to those found in bacteria.

1b. Choose the false statement:

Group of answer choices

The structure shown demonstrates how the translation stage of gene expression can function as an assembly line to generate lots of protein product quickly.

Bacteria are able to regulate their metabolism by turning genes ON and OFF at the transcriptional level; this affects metabolism by determining the presence or absence of particular mRNAs in the cell.

As evidenced by our much much larger genomes, eukaryotes are much more complex than prokaryotes; a similar trend exists among different eukaryotes, such that the genomes of fruit flies or beetles are considerably smaller than that of more complex organism like humans.

1c. Choose the false statement:

Group of answer choices

The redundant nature of the genetic code implies that in some instances several different amino acids are coded for by the same codon.

Genes can be divided into two groups, those that code for proteins (e.g., structural genes) and regulators, those that control the expression of structural genes.

The karyotype shown belongs to a genetic male.

Answer 1

1, a when eukaryotic organims reproduce from one generation to another mutations play a far more importance than does recombination in genetic variaton.

This is a false statement because in eukaryotes, recombination is the most naturally occurring process of genetic variation which can be said to be the major driving source of evolution. It is due to rearrangement of genome which forms new alleles. Mutation is something mostly induced by an external mutagen.

2, As evidenced by our much larger genomes, eukaryotes are much more complex than prokaryotes., similar trend exists between different eukaryotes, such that the genomes of fruit flies or beetles are considerably smaller than that of more complex organisms like humans

This is a false statement

Because the complexity of an organism do not mean necessaryily mean that their genomes are complex . it is not proportional and there is no direct correlation.

3, the redundant nature of the genetic code implies that in some instances several different amino acids are coded by a same codon.

This is a false statement because different amino acids gave different codons. The genetic codon of a amino acid is unique for it. There are more than one codon for an amino acid but there cannot be same codon for different amino acids.