Answer:
mitochondria DNA (mtDNA) has maternal inheritance
chloroplast DNA (cpDNA) has paternal inheritance
Explanation:
DNA is deoxyribonucleic acid is the molecule responsible for encoding the genetics instructions used in the development and functioning of all known leaving organism.
in humans mitochondria DNA (mtDNA) has maternal inheritance and
chloroplast DNA (cpDNA) has paternal inheritance
Answer:
a). At least one intron must be present in gene X.
b). At least two intron must be present in gene Y
c). It is impossible to determine whether there are any introns in gene Z.
Explanation:
Introns may be defined as the segments in the RNA molecule or the DNA molecule that does not code for proteins and they interrupts the sequences of each of the molecules.
In the context, we get :
a). In the gene X, at least one of the intron is present. Sometimes more than one introns may also be present. Due to slicing, we get one band less in the cDNA which is made from the mRNA.
b). In dene Y, at least one intron is present. Sometimes more than one introns are present inside the gene Y. In this case we get two bands less in the gene due to slicing.
c). In gene Z, it is not possible to determine the number of introns present in them. In genes X and Y, the Haelll enzyme is present in the intron. Therefore we get less of band after splicing the mRNA to cDNA.
Explanation:
Scientists indicate that high levels of CO2 can affect the way fish behave, so that they swim towards the odors of predators instead of maintaining distances and even perceive sounds that normally deter them from going to habitats of risk. These abnormal behaviors are related to the effect of carbon dioxide on how the brain processes signals from sensory organs.
[b] The sporangia are knob-like structures.
They are present at the top of the thread-like structures called hyphae.
They are dispersive, i.e. they are scattered by rain, wind or insects.
Answer:
The Cornea
Explanation:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air. The cornea is the fastest healing tissue in the human body, thus, most corneal abrasions will heal within 24-36 hours.
