Question

What is the relationship between the number of chromosomes in an organism's genome and its biological complexity?

a) more complex organisms have a higher number of chromosomes due to a higher number of genes

b) organisms have the same number of chromosomes, even though they vary in complexity

c) there is no relationship, many less complex organisms have a large number of chromosomes

d) less complex organisms have fewer chromosomes because it takes less time and energy to replicate their cells

e) less complex organisms tend to have more chromosomes and more proteins encoded by them

Which molecule is required to carry the information stored in the nucleus to the ribosome for protein synthesis?

a) transfer RNA (tRNA)

b) DNA ligase

c) messenger RNA (mRNA)

d) the genetic code

e) termination enzymes

Which of the following is NOT a stage of mitosis?

a) prophase

b) telophase

c) retrophase

d) anaphase

e) metaphase

Choose the correct order of heredity from smallest to largest.

a) gene, chromosome, allele, genome

b) gene, allele, chromosome, genome

c) chromosome, genome, allele, gene

d) allele, gene, chromosome, genome

e) genome, chromosome, allele, gene

The gene for earlobes is dominant, where EE= attached lobes. Sally is heterozygous for this gene. Which statement is true about Sally?

a) she has the phenotype for attached earlobes, and a genotype with one allele

b) she has a genotype for attached earlobes, and a phenotype with one allele

c) she has the phenotype for attached earlobes, and a genotype with two alleles

d) she has the genotype for unattached earlobes, and a phenotype with two alleles

e) she has the phenotype for unattached earlobes, and a genotype with two alleles

What is the group of three adjacent nucleotides which initiates polypeptide formation called?

a) termination sequence

b) genetic code

c) promoter

d) start codon

e) small subunit

Answer 1