Which step shows two steps of DNA replication?
During the S phase, DNA replication begins and creates two identical copies of DNA. During G2 the cell makes its final preparations for cell division and replicates organelles. Then, finally in mitosis, or M phase, the cell divides and each daughter cell receives an identical copy of DNA created during S phase.
What do the two arrows represent?
It was a symbol of war as well as peace. Within Native American cultures, the sign of two crossed arrows is used to represent an alliance, while an arrow broken in two is a sign of peace.”
Which answer choice correctly describes the model of mRNA strand being transcribed?
Which answer choice correctly describes the model of the mRNA strand being transcribed? The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine.
Which of the following best explains why cells that contain the same genetic material?
The diagram shows how specialized body cells can develop. Which of the following best explains why cells that contain the same genetic material do not develop into the same type of cells? … Because chemical signals that are released during the cell cycle can result in the linking of similar genes.
Which of the following best describes the process diagram 2 represents?
Which of the following best describes the process that diagram 2 represents? cell division that occurs to create reproductive structures of an organism. … A diploid cell has 12 chromosomes.
Which phase of the cell cycle is occurring in the cell indicated by the arrow?
The arrow is pointing to a cell in anaphase. Note how the chromosomes are separated into two sides with a clear area between them. Telophase is the final stage of mitosis. Telophase is characterized by the formation of two new daughter nuclei at either end of the dividing cell.
What are the two stages of gene expression?
It consists of two major steps: transcription and translation. Together, transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene’s DNA is passed to a similar molecule called RNA (ribonucleic acid) in the cell nucleus.
Which statement best describes how each of the different cell types can develop from the same embryo?
Which statement best explains how each of the different cell types can develop from the same embryo? The cells have identical genetic instructions, but different parts of these instructions are being expressed in each cell.
Which statement best describes the primary function of DNA replication?
Q. Which statement BEST describes the primary function of DNA replication? To ensure daughter cells have a complete copy of DNA.
What are the two stages of gene expression quizlet?
Transcription is the process of creating a mRNA strand from the DNA template strand. Translation is the process of creating a polypeptide (protein) from the mRNA strand. Gene expression is the use of genetic information in DNA to produce proteins in the cell.
What is the first step of gene expression?
Transcription is the first step of gene expression. During this process, the DNA sequence of a gene is copied into RNA.
What is the first step of gene expression quizlet?
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (especially mRNA) by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.
Which is the sequence for gene expression?
The correct answer is b. DNA, RNA, polypeptide. This sequence of gene expression, with RNA as an intermediate between the information in DNA and the…
Which of the following is the correct order of steps in translation?
The correct order of stages of translation is initiation, elongation and termination.
Does DNA have one or two strands?
So each DNA molecule is made up of two strands, and there are four nucleotides present in DNA: A, C, T, and G. And each of the nucleotides on one side of the strand pairs with a specific nucleotide on the other side of the strand, and this makes up the double helix.
Is the first step of gene expression during which a particular segment of DNA is converted into RNA?
Transcription is the first step in gene expression. It involves copying a gene’s DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template).
Which of the following steps is the first step in translation?
Translation is generally divided into three stages: initiation, elongation, and termination (Figure 7.8). In both prokaryotes and eukaryotes the first step of the initiation stage is the binding of a specific initiator methionyl tRNA and the mRNA to the small ribosomal subunit.
Which of the following is the first step in translation?
aminoacylation of tRNA
The first step in translation is the aminoacylation of tRNA. It is also known as the charging of tRNA or activation. Amino acids are activated in the presence of ATP and get linked to the specific tRNA. It is a two-step process.