Answer:
Incomplete Dominance
Explanation:
Incomplete dominance is a phenomenon in which the alleles of two genes are not completely dominant over each other and so when they are present at the same time in an organism (heterozygous for that gene) the organism will have an intermediate phenotype that is a combination of both phenotypes.
For example: The flower color in Snapdragon can have three different genotypes as well as phenotypes. The flowers can be red, pink or white depending on their genotype. The allele for red flower (R) is incompletely dominant over allele of white flower (r). A plant with genotype RR will be red flowered and that with rr will be white flowered. However, if a plant has genotype Rr (intermediate), then the flowers will be white in which no allele was dominant over the other and both showed their effect giving a combination of two colors as Pink flowers.
Same is the case with the mating between white and black hen, where offspring was grey in color. This grey was a combination phenotype of two phenotypes.
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Answer:
Drinking alcohol in the first three months of pregnancy can cause the baby to have abnormal facial features. Growth and central nervous system problems (e.g., low birthweight, behavioral problems) can occur from drinking alcohol anytime during pregnancy.
Explanation:
Answer:
<u><em>The statement made by Dominique is correct.</em></u>
Explanation:
When an antibiotic is given to a bacterial population, there will be some bacteria which will be resistant to the antibiotic and there will be others which will not be resistant to the antibiotic.
<em>Those which are not resistant will die.</em>
<em>On the other hand, the resistant bacteria will be able to divide rapidly and pass on their characteristics to the offspring.</em>
This is a type of natural selection in which organisms which are better able to survive in the environment can reproduce and pass their characteristics to their children.
The claim made by Bernadette is not correct because individual organisms cannot adapt to such changes. A change will occur in the population.
The two stages of photosynthesis are:
The light reactions
and
The dark reactions.
Answer:
The two genes are come from one chromosome.
Explanation:
a. One haploid can synthesize uracil, another one can synthesized leucine. Assume that there is not any mutation, two different amino acids should be encoded by different genes.
b. The genotypes of two haploid strains are different. Each has contained single chromosomes, as same as gametes in any Eukaryotic organism.
c. Firstly, yeast is an Eukaryotic organism, diploid. It means they have chromosomes in pair. Secondly, haploid cell contains half of the chromosomes from parent cell. Due to the theory of meiosis, the half chromosome encoding leucine go to one haploid cell, the other encoding uracil go to another haploid cell. If they are from different chromosomes, there is a chance to have a haploid which can produce both uracil and leucine. Thus, the only possible answer is that they are from a chromosome in opposite long-arm or short-arm of the chromosome, which is later divided into two haploid.
d. There is not any haploid strain which is able to produce both uracil and leucine.
