Answer:
A)
Hh * hh
Hh, Hh, hh, hh
Out of four two calves are horned. Thus ratio of horned calves is ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
B)
Hh * Hh
HH, Hh, Hh, hh
Out of four one calf is horned. Thus ratio of horned calf is ![\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D)
C)
Hh * hh
Hh, Hh,hh, hh
Out of four two are polled . Thus ratio of polled calves is ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Explanation:
Allele for dominant polled /hornless cattle is H
Allele for recessive horned cattle is h
A) Polled bull X horned Cow A ----> horned calf
This signifies that the polled bull is heterozygous with genotype Hh
Hh * hh
Hh, Hh, hh, hh
Out of four two calves are horned. Thus ratio of horned calves is ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
B) Polled bull X polled Cow B ----> horned calf
Both Bull ad cow are heterozygous with genotype Hh
Hh * Hh
HH, Hh, Hh, hh
Out of four one calf is horned. Thus ratio of horned calf is ![\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D)
C) Polled bull X horned Cow C ----> polled calf
Hh * hh
Hh, Hh,hh, hh
Out of four two are polled . Thus ratio of polled calves is ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Answer:
Cells are the basic building blick of all living things
Water is used in many reactions in the body, both enzymatic and chemical. Water within blood and lymphatic system is responsible for the transport of hormones, antidotes oxygen and nutrients.
Metabolism can be described as entirety of chemical reactions which take place within a cell, the result of which is energy for processes which take place in the body.