Answer:
Minimal media + glucose + streptomycin
Explanation:
Those capable of synthesizing galactose can grow in minimal media, the availability of streptomycin will destroy those who are susceptible to the antibiotic, whereas glucose, a carbon source from which galactose may be produced and will encourage growth.
Therefore:
The medium should not include galactose when selecting for gal⁺.
Streptomycin should be present in the medium to select against
.
The medium to choose is: Minimal media + glucose + streptomycin.
The phenotype is - 75 % red and 25 %brown.
The genotype is hRhR - 25%
hBkhR - 50%
hBrhBk - 25%.
<h3><u>Explanation:</u></h3>
The cross given here is a simple dominant - recessive relationship between the three types of alleles of hair colour. The genes of this characteristics are present in autosomes, so will be segregated equally among all the sexes of the offsprings.
Now the genotype of auburn and red with black mother is given. So during gametogenesis, the gametes from the parents will be
Father - hBr and hR
Mother - hBk and hR
So, the probable combinations are hBrhBk, hBrhR and hBkhR.
The frequency of the combinations are 25%, 25% and 50% respectively.
The phenotypic ratio will be red : brown as 3:1.
<span>After a long time, a mature community is established and this community does not change unless it is disturbed.</span>
Answer: Hello again The answer you clicked on is correct btw. Its long hair
Explanation:
The alleles would be Ll when the offspring is born and it would only be short hair if it was ll. Anything with capital “L” in it would be a long hair.
Answer:Try asking on Yahoo they usually have the answers more quicker that we do.