According to the rules of human genetics, if Betsy and Rudolph have a calf it will have a black nose.
What are alleles?
- The substance that is stably passed down, unchanged, from parent to offspring through the gametes, over successive generations is called as ‘factors’ now called as genes.
- Genes, therefore, are the units of inheritance. They contain the information that is required to express a particular trait in an organism. Genes which code for a pair of contrasting traits are known as alleles, i.e., they are slightly different forms of the same gene.
- Since Betsy has a dominant trait and doesn't carry any recessive gene and Rudolf has a recessive trait, their phenotypes will be NN and nn respectively.
- Mendel proposed that in a pair of dissimilar factors, one dominates the other and hence is called the dominant factor while the other factor is recessive. In this case N (for black nose) is dominant over n (for red nose), that is recessive.
- From the punnet square it is seen that the all the fertilisations lead to individuals having 'black nose' only and none of them will have 'red nose'.
- Within the genotypic pair Nn only one character N 'black nose' is expressed. Hence the character N or ‘black nose’ is said to dominate over the other allele n or ‘red nose’ character.
- It is thus due to this dominance of one character over the other that all the calf will have 'black nose' with Nn as the genotype.
To learn more about punnet square:
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Answer:
Chick with in the egg depend for all its energy and food requirement on the egg yolk , therefore egg yolk is rich in fat, protein, and cholesterol.
Explanation:
Before the egg breaks and the chick comes out, few days nourishment for chicks is required. Hence, the egg yolk needs to be nutritious as new developing chick (with in the egg) rely for essential nutrients (required for growth) on the egg yolk. Chick require energy from yolk, hence it is rich in fat (energy). It also needs to grow and develop, therefore egg yolk has lot of protein (building blocks). Lipid and cell with in the yolk help in formation of cell and strengthening of bones and feathers
Answer:
different patterns can be the rotation between night and day, Ocean tides and currents can also be a causeed by atmosphere changes
Explanation:
Answer:
The atmosphere
Explanation:
Most of the air travels through the atmosphere tho very little travels through the ocean from air vents, or scuba diver oxygen tanks.
I hope this helped!