50 % of the offspring are expected to have roan coat If two roan cattle were crossed.
Explanation:
In codominance both alleles from the parents are expressed and the phenotype is different from the parents.
Roan is a type of coat colour where there is even occurrence of coloured and white hairs on the coat of the cattle.
The genotype of Roan cattle is CRCW (CR red, CW-white)
If two roan cattles are mated:
CRCW X CRCW
punnet square shows:
CR CW
CR CRCR CWCR the genotype ratio = 1:2:1
CW CWCR CWCW phenotype ratio = 1:2:1
1 pure white cattle
1 pure red cattle
2 roan cattle
Answer:
A
Explanation:
510K approval is required to demonstrate that device to be marketed is substanitally similar to an already legally approved and marketed device and therefore safe to use
PMA approval is required to approve Class III type medical devices that are new and have not been marketed. They involve human participants.
Clinical trials involve volunteers and is carried out when a drug or device has been tested in laboratory
Exempt status is given to class I devices and not to class III devices.
<span>Hibernation is a state of inactivity or state of deep sleep in which many animals uses a survivalstrategy when whether conditions are harsh. MAny animals. during winter undergo hibernationto conserve energy. Therefore, hibernation is trigered by changes in the weather.</span>
Answer:
Lock and key, where correct fit between components is critical.
Explanation:
Reproductive isolation may be defined as the evolutionary and physiological differences that prevent the mating of the different species. This process is critical for the speciation.
Pre reproductive mechanism prevents the meeting as well as mating of the different group of organisms. The genital structure of the insects match and unique within the species. The genital structure of the male and female species fit with each other as the key fits into its lock.
Thus, the correct answer is option (e).
Answer:
parasitism,
Explanation:
parasitism, relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.