Answer:
Dogs were probably domesticated by accident, when wolves began trailing ancient hunter-gatherers to snack on their garbage. Docile wolves may have been slipped extra food scraps, the theory goes, so they survived better, and passed on their genes. Eventually, these friendly wolves evolved into dogs
Explanation:
<u>There are five groups of factors responsible for the kind, rate and extent of soil development. They are: Climate, organisms, parent material, topography and time. Soil from one place is different from another because of the differences in the influence of these factors.</u>
<span>A. DNA polymerase binds to one origination site at a time.</span>
Answer:
1. Probability is 50% or 1/2
2. a) Genotypic ratio= 1 AA: 2Aa : 1aa
b) Phenotypic ratio = 3 normal pigment : 1 albino
3. Monohybrid cross
Explanation:
This question involves a single gene coding for pigment in humans. The allele for normal pigmentation (A) is dominant over the allele for albinism (a).
According to this question, if two heterozygous parents (Aa) are crossed i.e. Aa × Aa. The following proportion of offsprings will be produced:
AA, Aa, Aa, and aa
- Hence, the probability of having a heterozygous offspring is 2/4 or 1/2 or 50%
- Genotypic ratio= 1 AA: 2Aa : 1aa
Phenotypic ratio = 3 normal pigment : 1 albino
c. This type of cross is called MONOHYBRID CROSS because it involves a single gene