Plant diversity creates a more nutritionally balanced diet for honey bees, especially in terms of pollen. What other benefit do honey bees gain through this diversity?
Blooms available more for the year
Answer:
D) A dihybrid cross involves organisms that are heterozygous for two characters that are being studied, and a monohybrid cross involves organisms that are heterozygous for only one character being studied.
Explanation:
When we do a monohybrid cross, we look at one characteristic at a time. When you do dihybrid cross, you are looking at characteristics.
Monohybrid cross example:
If black fur (B) is dominant over white fur (b) what is the probability of black fur in an offspring between two dogs heterozygous for the trait?
Bb x Bb
B b
B BB Bb
b Bb bb
So the probability of black fur is 75%.
Dihybrid example:
If black fur (B) is dominant over white fur (b) and short hair (S) is dominant over long hair (s) what is the probability of white fur and long hair in an offspring between two dogs heterozygous for both traits?
BbSs x BbSs
BS bS Bs bs
BS BBSS BbSS BBSs BbSs
bS BbSS bbSS BbSs bbSs
Bs BBSs BbSs BBss Bbss
bs BbSs bbSs Bbss bbss
The answer would be 1:16 = 6.25%
Answer:
The correct answer is b) Koch's postulates
Explanation:
Koch has given some postulates which determine whether a particular bacteria is a cause of a particular disease or not. The Koch postulates are as follows
:
1. In every disease bacteria(microbe) is present.
2. This bacteria can be isolated from the host and can be grown in a pure culture.
3. This pure culture of bacteria if injected in a healthy host then it will cause that specific disease in the healthy host.
4. The bacteria can be recovered from the host again.
Therefore in the given question, Koch principles are applied.