Frederick Griffith experiment with two strains of bacteria by injecting them into mice in various combinations. He found that when you mix dead bacteria with live, it's possible for the live strain to acquire some of the traits of the dead one. Why was this important

Explanation:

Frederick Griffith experimented on the Mice with the streptococcus pneumoniae strains. The virulent strain was called S strain smooth strain as it has a smooth layer whereas the avirulent strain was called the R strain or rough strain.

When he injected the virulent strain of bacteria by heat killing them and live R bacteria, he found that the mice were killed.

This shows that the live or avirulent bacteria became virulent or transformed into virulent bacteria by acquiring the virulent trait of the S bacteria. This led to the formation of the transforming principle.

Griffith's experiment was a pivotal moment in genetics and biology, as it provided the first direct evidence of genetic change due to the transfer of genetic material between organisms, a concept that is fundamental to modern genetics and biotechnology.

This observation by Frederick Griffith was important because it provided the first evidence of genetic transformation, which is the process by which genetic material is exchanged between organisms through the environment. This phenomenon, later termed ""transformation,"" challenged the contemporary understanding of genetics and heredity. Griffith's experiment suggested that some ""transforming principle"" could be transferred from one bacterium to another, leading to a change in the characteristics of the recipient bacteria. This ""transforming principle"" was later identified as DNA by Oswald Avery, Colin MacLeod, and Maclyn McCarty in 1944.

The significance of Griffith's discovery lies in several key areas:

1. Evidence for Genetic Material: Griffith's experiment provided the first experimental evidence that hereditary material could be transferred between organisms, which was a revolutionary concept at the time.

2. Understanding of Genetic Information: It demonstrated that genetic information could be transmitted independently of reproduction, contradicting the belief that inheritance only occurred through the fusion of gametes.

3. Implications for Inheritance and Evolution: The findings implied that traits could be inherited horizontally (between individuals) as well as vertically (from parents to offspring), which has profound implications for understanding evolutionary processes.

4. Foundation for Molecular Biology: Griffith's work laid the groundwork for the field of molecular biology, as it led to the identification of DNA as the hereditary material. This knowledge was crucial for subsequent research into the structure and function of DNA, including the discovery of the double helix by James Watson and Francis Crick.

5. Medical Relevance: The concept of genetic transformation has significant implications in medicine, particularly in understanding how bacteria can acquire antibiotic resistance genes from other bacteria, leading to the spread of drug-resistant strains.

In summary, Griffith's experiment was a pivotal moment in genetics and biology, as it provided the first direct evidence of genetic change due to the transfer of genetic material between organisms, a concept that is fundamental to modern genetics and biotechnology.

Glucagon allows glucose to enter the blood from alpha cells.

True

False

Which statement below correctly explains and gives the importance of the endosymbiotic theory?
A. The endosymbiotic theory states that the inner and outer membrane of the endoplasmic reticulum indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the presence of prokaryotic ribosomes and replication of the endoplasmic reticulum via binary fission.
B. The endosymbiotic theory states that the inner and outer membrane of the mitochondria indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the presence of prokaryotic ribosomes and replication of mitochondria via binary fission.
C. The endosymbiotic theory states that through endocytosis, early prokaryotic cells were able to bring in additional nutrients. These additional nutrients provided important energy that drove evolution of these prokaryotic cells into the eukaryotic cells seen today in more advanced organisms.
D. The endosymbiotic theory states that through endocytosis, early prokaryotic cells were able to bring in early energy rich eukaryotic cells. The energy provided drove evolution of these prokaryotic cells into the eukaryotic cells seen today in more advanced organisms.

consider the structure and function of fats to predict which animal would have more fat: one that live close to the poles or one that lives close to the equator?