Answer:
Characteristics
Explanation:
When atoms mutate, the original characteristics, or properties change. Properties could also mean 'traits' which is a synonym of characteristics.
Answer:
The bacterium, <em>Francisella tularensis </em>
Explanation:
The bacterium <em>Francisella tularensis </em>causes rabbit fever which is a zoonotic infection. It is an infection which is spread from infected animals to the humans. The humans get infection from this bacterium Francisella tularensis through the contact of infected animal tissues or through ticks. But, the transmission to humans by the tick bites is the main mode. The symptoms of the infection are headache, muscle pain, red spot on the skin, and shortness of breath.
Answer:
Smooth Muscle Definition Smooth muscle is a type of muscle tissue which is used by various systems to apply pressure to vessels and organs. Smooth muscle is composed of sheets or strands of smooth muscle cells. These cells have fibers of actin and myosin which run through the cell and are supported by a framework of other proteins.
Explanation:
The urinary system consists of the kidneys, the ureters, the urinary bladder, and the urethra.
Explanation:
The problem says that the hairless phenotype never breeds true. That means that it's not the result of a homozygous genotype (H₁H₁ or H₂H₂), so it is caused by the heterozygous genotype (H₁H₂).
The <u>expected </u>offspring from the cross between two Mexican hairless would be:
<h3>P
H₁H₂ x
H₁H₂</h3><h3>F1 1/4
H₁H₁, 2/4
H₁H₂ and 1/4
H₂H₂.</h3>
And the <u>expected</u> phenotypic ratio 3:1. However, the observed offspring shows a 2:1 ratio. What's happening?
If the observed phenotypic ratio in the offspring of a monohybrid cross (a single gene with two alleles) is 2:1, we can suspect that one of the genotypes is lethal in homozygosis and therefore does not appear in the progeny (the puppies are born dead).
If we proposed that the H₂ allele is lethal in homozygosis, then:
- The H₁H₁ genotype would cause normal puppies --> 1
- The H₁H₂ genotype would cause hairless puppies --> 2
- The H₂H₂ is lethal and causes the death of puppies --> 0
The phenotypic ratios change to 2:1, as observed in the experiment.
