The number of females whose height fall within the range 146 - 155 cm is 1.
- The height of the females can be obtained from the line graph in the picture attached.
- The height intervals is given on the x - axis and the Number of females on the y-axis.
- From the line graph, the number of females whose height range between 146 - 155 cm is 1.
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Answer:
B. A bridge-like connection is created between bacterial cells for genetic material to be transferred.
Explanation:
A. There is a change in the nucleotide sequence of a DNA molecule. - this is describing a genetic mutation
B. A bridge-like connection is created between bacterial cells for genetic material to be transferred. - this is <u>conjugation</u>, a type of genetic transfer between donor and recipient bacterial cells. It is a way that bacterial cells achieve genetic variation. For example, bacteria can share antibiotic resistance genes between one another. They do not directly contact one another, instead, they use a structure called a pilus to exchange material
C. A bacterial cell takes DNA fragments from a dead cell and incorporates them into their DNA molecule. - this is transformation, another type of genetic transfer where bacterial cells take up bacterial DNA from the environment. These molecules of DNA are usually from dead bacteria
D. There is a transfer of DNA from bacterium to another by a virus. - this is another type of gene transfer called transduction, where a virus takes genetic material from one bacteria to another.
Answer:
Frederick Griffith's discovery on the theory of genetics is credited to his experiment on mice. He subjected them to different strains of pneumonia bacteria. He concluded that there is an unidentified force that leads to the formation of different strains from what the mice were subjected to. This leads to the discovery of DNA, the carrier of traits. Scientist before did not know how the trait is passed on not until Griffith's experiment.
Explanation:
A terminator or twilight zone is a moving line that divides the daylit side and the dark night side of a planetary body. The terminator is defined as the locus of points on a planet or moon where the line through the center of its parent star is tangent.