Variable is the single factor tested in an experiment.
Variable is any factor or condition that can be tested, changed, or measured in an experiment. Scientific experiments have various kinds of variables. They include independent variables, dependent variables, constant variables and extraneous variables. The independent variable is the only factor that can be changed in a science experiment.
B. have to pass through the G1, S, and G2 phases to prepare for division.
C. have to use binary fission to divide.
D. have to go through prophase, metaphase, anaphase, and telophase.
The right answer is C
"Binary fission" is the most common form of reproduction and cell division of prokaryotes. A cell, after replicating its genetic material, divides into 2, each part containing a copy of the genetic material and 2 new perfectly individualized cells are finally created, each having the ability to grow to the size of the parent cell of origin ... The chronology is as follows:
- replication of the bacterial chromosomal DNA and segregation into two nucleoids and cell growth phase;
- assembly of a protein ring of constriction;
- constriction of the ring associated with the wall synthesis until complete individualization of the 2 new cells.
Chase and Hershey conducted experiments in 1952, using bacteriophages that revealed DNA, not protein, was the genetic material.
The experiments that revealed protein was not the genetic material were conducted by Martha Chase and Alfred Hershey in 1952. They were studying a bacteriophage, a virus that infects bacteria, which has two main structures: a protein coat known as the capsid, and a nucleic acid core that contains either DNA or RNA.
Hershey and Chase used radioactive markers to label the protein coat and DNA of the bacteriophage, respectively. Through their experiments, Hershey and Chase discovered that only the DNA entered the host bacteria upon bacteriophage infection, suggesting that DNA, not protein, is the genetic material. Their work was instrumental in establishing DNA as the molecule responsible for heredity.
#SPJ3
Primary succession is beginning.
Secondary succession is beginning.
Primary succession is occurring
The right answer is A (substitution).
-A-A-G-T G-C-
-A-A-A-T G-C-
In genetics, point mutation is the generic terminology used to describe a mutation that causes a structural change in a gene. This type of mutation can impact between one and ten nucleotides. Insertion mutation, deletion mutation and substitution mutation are the three forms of existing point mutations.