Answer:
0 additive alleles = A0B0C0D0
1 additive allele = A+B0C0D0, A0B+C0D0, A0B0C+D0, A0B0C0D+
2 additive alleles = A+B0C0D+, A+BC+D0, A0B+C+D0, A0B+C0D+, A0B0C+D+, A+B+C0D0
3 additive alleles = A+B+C+D0, A+B+C0D+, A+B0C+D+, A0B+C+D+
4 additive alleles = A+B+C+D+
The answer would be catalyst.
Stored in the laboratories at the centers for disease control and prevention and a Russian laboratory in Siberia are the only two place in which Smallpox virus remains.
<h3>What is smallpox?</h3>
Variola major or Variola minor are the two virus strains that cause the contagious sickness known as smallpox. The variola virus (VARV) agent is a member of the genus Orthopoxvirus. The World Health Organization confirmed the illness's universal eradication in 1980 after the last naturally occurring case was diagnosed in October 1977, making polio the only human disease to have achieved this feat.
Fever and vomiting were among the disease's earliest signs. This was followed by the development of mouth ulcers and a rash. The skin rash developed into the typical fluid-filled blisters with a dimple in the middle over a period of days. The scars were left after the lumps scabbed over and dropped off. People could contract the illness from contaminated things or from one another. Prevention is through the vaccine for smallpox.
To learn more about smallpox with the help of given link:
brainly.com/question/13167254
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Answer:
Option A , The allele for yellow is dominant to white
Explanation:
It is given that 23 percent of the sheep have white fat and 77 percent have yellow fat.
Thus, it is clear that sheeps with yellow fat is a dominant characteristics.
Usually, the frequency of homozygous recessive allele in a given population is represented by 
and here 
Frequency of allele for white fat 
While frequency of homozygous dominant allele and heterozygous dominant allele is represented by 
And here 
Allele for yellow fat 
Hence, option A is correct.
