Answer:
False
Explanation:
Cytosine, guanine, thymine, and adenine are collectively referred to as nitrogenous bases. These are not phosphates. The cytosine, guanine, thymine, and adenine are the four different types of nitrogenous bases. These nitrogenous bases are present in the deoxyribonucleotides. Cytosine and thymine are smaller in structure and have single ring structures. These are collectively called pyrimidines. On the other hand, adenine and guanine are the larger nitrogenous bases each with double ring structures. They are collectively called purines
Staphylococcus aureus is almost a household name because it is so common and it has plenty of ways to cause infection in humans. The ‘staph’ is the primary cause of boils, folliculitis, impetigo, cellulitis, organ infection and sepsis, bone infections, bacteremia, and biofilms. When ingested and it reaches the intestine, the ‘staph’ has another nasty trick on its sleeve by producing enteroxins A and B, which cause food poisoning. Staphylococcus aureus can get into food when an ill person cough, sneezes, or spits into food. It takes one to six hours for the bacteria to produce toxins, which can make you sick for several minutes to three days.
Skeletal muscle – the specialised tissue that is attached to bones and allows movement. Together, skeletal muscles and bones are called the musculoskeletal system (also known as the locomotor system).
Answer:
The probability is 0.25 or 25%
Explanation:
To answer that question, you need to solve a Punnett Square. The Punnett Square allows you to observe the crossing of two parents, being able to observe the relationship between the alleles of each parent in the construction of the offspring. Punnett Square, is made on a table with eight squares. The alleles of one parent are placed in the first row, while the alleles of the other parent are placed in the first column. Therefore, each allele of one parent is combined with the allele of the other, as the remaining squares are filled. This combination of alleles leads to the genetic probability of a possible offspring.
In the case of the question above, the cross between the alleles of parents that both have the Tt (Tt x Tt) alleles is shown below, using the Punnett square.
T t
T TT Tt
t Tt tt
At this intersection, we can see that the "tt" alleles only appeared once in an offspring of 4 possibilities. Thus, we have a 1/4 calculation that is equal to 0.25, which represents a 25% probability that the offspring of this crossing will present individuals with the "tt" alleles.
