Bacterial diseases respond to antibiotics, viral diseases don't.
Bacteria Growth Rate Formula:
N(t) = N(0) * ( 1 + r)^t
where, N(0) is the number of bacteria present at the beginning of the experiment, r is the growth rate, t is the time taken/ elapsed.
Substituting the numbers for N(t), N(0) and t from the given description, we get the value of r.
220 = 20*(1+r)^(24 hours)
Solving for r, we get r = 0.105074.
1 week has (7 x 24 = 168) hours in it.
Therefore, N(168 hours) = 20*(1+0.105074)^168
Which is approximately 390 millions.
Hence there will be 390 millions bacteria at the end of 1 week.
Answer:
The genotype of a black male is XtY
Explanation:
<u>Available data:</u>
- coat color is an X-linked trait with incomplete dominance.
- Yellow coat is caused by the allele XT
- Black coat by the allele Xt.
- Tortoise coat is caused by the heterozygous condition
So,
<u>females genotypes females phenotype </u>
- XTXT → Yellow coat
- XtXt → Black coat
- XTXt → Tortoise coat
<u>males genotype males phenotype</u>
- XTY → Yellow coat
- XtY → Black coat
Males only carry one X chromosome, so they can only be either black - XtY- or yellow -XTY-.
Females are the only ones that can express the tortoise coat.
Answer:
Genotypic variation occurs when alleles are randomly sorted during sexual reproduction. ... Some types of organisms can increase genetic variation through reproduction. They are able to combine the genetic material of two parents, rather than copying the genetic material of a single parent.
Brainliest would be great!
