Answer:
1/16
Explanation:
- scalloped (Xsd) is an X-linked recessive trait to Xsd+ (wild type)
- ebony (e) is an autosomal mutation recessive to e+ (wild type).
The two genes are independent because they are located on different chromosomes.
<h3>
<u>Parental generation:</u></h3>
True breeding scalloped female wild type for ebony (<em>Xsd Xsd e+e+</em>) mates with a true breeding male mutant only for ebony (<em>Xsd+ Y ee</em>).
The female only produces <em>Xsd e+</em> gametes. The male produces <em>Xsd+ e</em> or <em>Y e</em> gametes.<u> Therefore, the F1 females will have the genotype </u><u><em>Xsd Xsd+ e e+ </em></u><u>and the F1 males will have the genotype </u><u><em>Xsd Y e e+.</em></u>
If you complete a Punnett Square with the gametes the two F1 individuals can produce, you will get all the F2 proportions. The scalloped, ebony females have a<em> Xsd Xsd e e</em> genotype and appear in a 1/16 proportion.
Because white hair is a recessive allele meaning it is dominated over Brown hair alleles.
Answer:
C
Explanation:
A catalyst is a substance added into a chemical reaction, that aids in the increase of the chemical reaction without the catalysts undergoing any chemical reaction. Thus the catalyst and the beginning of the reaction (reactant) is the unchanged at the end of the reaction (products).
<span>C. cell differentiation
</span>A. tissues
A. zygote
<span>C. programmed cell death
</span><span>B. diseased</span>
Ssris alleviate symptoms of depression by increasing the<u> level of serotonin at the synapse
.</u>
Answer: Option C
<u>Explanation:</u>
Ssris (Selective serotonin re-uptake inhibitor) is a drug that is been prescribed to the people with depression and anxiety disorders. In the brain the information and messages are passed from one nerve cell to the other.
People with disorders find difficulty in transmitting the information. Hence a drug like SSRI's are prescribed to increase the level of serotonin at the synapse as the nerve cell passes the information through synapse the small gap between the cells.
