Bio 340 Exam 1 - Questions with Verified Answers| Latest Update Graded A+
In the early 1900s, scientists noted that chromosome movements during cell division in
reproductive cells mirrored the patterns of inheritance described by Mendel. These results and
others confirmed that Mendel's hereditary units (genes) were located on chromosomes. The
sum total of chromosomes in an organism constitute its __________, whereas the organism's
observable traits constitute its genotype; phenotype
Which domain(s) of life include(s) multicellular organisms? Eukarya
Watson and Crick derived their model of DNA structure not from their own laboratory research
but rather through the analysis and interpretation of experimental data generated by others,
such as Erwin Chargaff, Rosalind Franklin, and Maurice Wilkins. Which of the following provides
evidence that DNA nucleotides are arranged as complementary base pairs? Percentages of
adenine and thymine are approximately equal to one another, and the percentages of cytosine
and guanine are approximately equal to one another.
What type of bonds holds the two strands of DNA together through the formation of
complementary base pairs? Hydrogen bonds
Which of the following statements about DNA replication is NOT true? A new DNA strand is
synthesized with the same polarity (5′ and 3′ ends) as the template strand.
What is a promoter? A DNA sequence that specifies the start site for transcription
The genetic code consists of a total of how many different codons? 64
Which of the following is NOT one of the four processes of evolution that lead to changes in the
frequency of alleles in a population over time? sexual reproduction
Based on the phylogenetic tree presented in the figure above, what are the closest living
relatives of the dinosaurs? birds
, genes the physical units of heredity
chromosomes consist of single long molecules of double stranded DNA
homologous pairs (homologs) chromosomes of sexually reproducing organisms in pairs
single celled organisms bacteria/archea
bacteria/archea 1. single large chromosomes (some contain plasmids)
2. no membrane bound nucleus or intracellularr membranes
3. unicellular
4. smaller genomes
haploid one copy of each gene
nucleiod region of the cell that hold the chromosomes using proteins
eukaryotes 1. multiple chromosomes organized by proteins
2. membrane bound nucleus and intracellular membranes
3. membrane bound organelles
4. unicellular and multicellular
5. larger genomes
gamete cells in eukaryotes are the sex cells and are haploid
In the early 1900s, scientists noted that chromosome movements during cell division in
reproductive cells mirrored the patterns of inheritance described by Mendel. These results and
others confirmed that Mendel's hereditary units (genes) were located on chromosomes. The
sum total of chromosomes in an organism constitute its __________, whereas the organism's
observable traits constitute its genotype; phenotype
Which domain(s) of life include(s) multicellular organisms? Eukarya
Watson and Crick derived their model of DNA structure not from their own laboratory research
but rather through the analysis and interpretation of experimental data generated by others,
such as Erwin Chargaff, Rosalind Franklin, and Maurice Wilkins. Which of the following provides
evidence that DNA nucleotides are arranged as complementary base pairs? Percentages of
adenine and thymine are approximately equal to one another, and the percentages of cytosine
and guanine are approximately equal to one another.
What type of bonds holds the two strands of DNA together through the formation of
complementary base pairs? Hydrogen bonds
Which of the following statements about DNA replication is NOT true? A new DNA strand is
synthesized with the same polarity (5′ and 3′ ends) as the template strand.
What is a promoter? A DNA sequence that specifies the start site for transcription
The genetic code consists of a total of how many different codons? 64
Which of the following is NOT one of the four processes of evolution that lead to changes in the
frequency of alleles in a population over time? sexual reproduction
Based on the phylogenetic tree presented in the figure above, what are the closest living
relatives of the dinosaurs? birds
, genes the physical units of heredity
chromosomes consist of single long molecules of double stranded DNA
homologous pairs (homologs) chromosomes of sexually reproducing organisms in pairs
single celled organisms bacteria/archea
bacteria/archea 1. single large chromosomes (some contain plasmids)
2. no membrane bound nucleus or intracellularr membranes
3. unicellular
4. smaller genomes
haploid one copy of each gene
nucleiod region of the cell that hold the chromosomes using proteins
eukaryotes 1. multiple chromosomes organized by proteins
2. membrane bound nucleus and intracellular membranes
3. membrane bound organelles
4. unicellular and multicellular
5. larger genomes
gamete cells in eukaryotes are the sex cells and are haploid
