Answer:
The three genes in coupling are in repulsion.
Explanation:
Coupling happens when the dominant alleles and the recessive alleles are on the same homologous chromosome, while the repulsion happens when one chromosome has one dominant allele and one recessive allele and another homologous chromosome also has dominant and recessive alleles.
If the progeny has:
nb+ ls+ a/nb ls a ⇒ nb+ ls+ a
nb ls a+/nb ls a ⇒ nb ls a+
Where nb+ ls+ a is the dominant alleles and nb and nb+ is in middle.
ls+ nb+ are on the same chromosome (both dominant)
ls nb are on the same chromosome (both recessive)
ls nb, these two are in coupling with each other, but ls+ and a are on the chromosome and ls+ or nb+ are dominant, while nb+ and a are recessive on form a, thus, ls and nb, they are in repulsion with a.
15. What's the requirement of every single natural process on Earth?
answer: Energy source
The answer is B. This is called genetic shift. The pups with
advantageous traits are able to survive until the age of reproduction hence able
to pass their genes to the next generation. Few and fewer pups with disadvantageous
traits will get to reproduce hence the allelic frequencies of the shark population
will shift in favour of increased hunting efficiency.
Answer:
C
Explanation:
The number of ATPs formed in the Krebs Cycle is 34 while in Glycolysis is 4. Adding the two result in 38 ATPs. However, remember that Glycolsysis takes up an initial 2 ATPs before the 4 are produced. The net ATP production in glycolysis is, therefore (4 – 2) = 2 ATPs. The overall net production of ATPs in aerobic cellular respiration is therefore 36 ATPs.
