The mRNA codon GAG corresponds to the tRNA molecule that can carry more than one amino acid <span>is one possible reason that Mutation 2 leads to the production of normal blood cells rather than the sickled blood cells.</span>
Answer:
Cell membrane and cytoskeleton
Explanation:
The cell membrane is the outer covering that encloses the cell contents and regulates movement of materials in and out of the cell. the cell membrane gives the cell its structure. Cytoskeleton provides support to the cell and include three types of small networks:
Actin filaments: - are flexible double strands of the protein actin
. They lead the intracellular movement of organelles and molecules and stabilize mechanically the plasma membrane
.
Microtubule: - are rigid hollow cylinders of the proteins α- & β-tubulin
They are responsible for the position and stability of ER and Golgi-Apparatus
, help to divide & move chromosomes during mitosis and organize the growth of the cell wall
.
Intermediate filaments: - are robe like fibres of different proteins which give
mechanical support
<span>1. What bacteria causes strep throat?
Streptococcus
2. What are the oldest life forms on earth?
Archaebacteria
3. What type of bacteria causes food poisoning?
Salmonella
4. What part of the bacteria cell helps it stick to surfaces?
Pilli
5. Name two foods that bacteria help make:
cheese, yogurt
6. What does “decompose” mean?
Break down
7. What is the control center of the bacteria cell?
DNA
8. Where do Archaebacteria live?
Flagella
9. To what kingdom do common bacteria belong?
Extreme environments
10. List one structure that is found in a bacteria cell that is also found in a human cell.
Eubacteria</span>
Answer:
The correct answer is -
P1: SSyy
p2: ssYY
Explanation:
In the given question it is given that S is the allele for the dominant trait of spherical shape over s allele of dented shape and similarly Yellow pea seed is dominant over y green seed.
It is given that parent 1 or p1 is true breeding for green spherical shaped seeds which means it has two alleles of the same gene that are SSyy (S for spherical and y for green) and parent 2 or p2 is a pure bred plant with yellow dented shaped seeds that would be ssYY.
The correct answer is C. The birthrate is higher than the death rate.
Explanation
The graph is about the growth of the world population, this shows the population growth of the world, Asia, Africa, Europe, United States, Canada and Greenland, Mexico, Central America, Caribbean Islands, and South America, and Oceania (Australia and nearby islands in the Pacific). This graph covers the time from 1950 to 2050 divided into decades. In the specific case of Africa in 1950 it had a population of close to 300 million people. Subsequently, in 2010 the population of Africa was close to 1 billion people and the projection for the year 2050 is 2 billion people. According to this, it can be concluded that the birth rate is higher than the death rate because the population has a growth trend, which indicates that more people are born than die.
