Answer:
Genotypes: 1/4 AA, 1/4 AO, 1/4 AB, 1/4 BO
Phenotypes: 2/4 (or 1/2) A blood type, 1/4 AB blood type, 1/4 B blood type
Explanation:
Punnett squares ! also, O blood is recessive so AO and BO would be types A and B
The mitochondrial DNA (mtDNA) is passed down from the mother to the children almost unchanged. The analysis of mtDNA has provided the forensic scientist with essential tools for determining the source of DNA that they have recovered even from small biological samples. Thus, the answer to the question above is letter B.
Answer:
Option C
Explanation:
none of the options are correct.
A blow to the back of the head might affect the occipital lobe at the back of the head and affect visual information but the gustatory cortex is found around the frontal lobe area and is involved with taste.
Communication between the left and right cerebral hemisphere is mediated by the corpus callosum and not the mid brain.
We would expect a change in the heart rate and even death if damage occurs to the medulla oblongate as it controls vital autonomic functions including breathing and heart rate and other functions.
A damage to the Broca area in the the frontal lobe will affect laguage production and not wernickle's area found in the temporal lobe.
The primary motor cerebral cortex on the left side of the brain controls movement of the right side of the body the right motor cerebral cortex controls movement of the left side of the body.
Answer: Low, High, Lac repressor
Explanation:
The expression of the lac structural genes is low when lactose is absent from the culture medium and is high when lactose is added, because lactose binds to the lac repressor and inactivates it.
When Lactose is present the lac genes is expressed because the substrate lactose act as inducer and binds to the lac repressor and inactivate it. So the gene is expressed.
But in the absence of lactose, the lac repressor binds the DNA and prevent the expression of the lac genes