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3 years ago

Assume that the average protein in

1 answer:

7 0

Assume that the average protein in E.coli consists of a chain of 400 amino acids. Now, a single amino acid present in the protein requires a codon to code for it. A codon consists of 3 nucleotides. This shows that a protein of length 400 amino acids will require, 400 codons to code for it, that is, 1200 (3 x 400) nucleotides are required. We know that the length of the E.coli genome on average is 5 x $10^{6}$ base pairs.

1200 nucleotides = 1 protein

5 x $10^{6}$ nucleotides = X no. of proteins

X = $\frac{5\times 10^{6} \times 1}{1200}$ = 4167

The answer is 4167 proteins.

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Coat color in rabbits is under the control of a single gene with

Mashcka [7]

Answer: a) Cch x Ccch

b) Ccch x Cc

c) Cch x cchch

d) cchc x chc

Explanation:

Data:

Coat color in rabbits is under the control of a single gene with

four alleles: C (full gray color); cch (chinchilla, light gray); ch

(Himalayan, white with black extremities); and c (albino, absence

of pigmentation).

The dominance hierarchy is represented as: C >cch > ch > c.

Possible genotypes:

For full gray color: CC (Gray), Ccch (Gray-2), Cch (Gray-1), Cc (Gray-3). The allele "C" dominates over the other three alleles, so in every combination where "C" is present, the animal will be fully grayed.

For light gray color/Chinchilla: cchcch (Chinchilla), cchch (Chinchilla-1), cchc (Chinchilla-2). The allele "cch" dominates over "ch" and "c", but not over "C". So if the allele "C" is combined with "cch", the animal will be fully grayed, but in any other combination with "cch", the animal will be light grayed.

For white with black extremities/Himalayan: chch (Hymalayan), chc (Hymalayan-1). The allele "ch" that determines the Himalayan color is only dominant over the allele "c". But in combination with any other allele, "ch" behaves as a recessive one.

For albino: cc. In the presence of any of the other alleles, the allele "c" always behaves as a recessive one. The only possibility of getting an albino animal is if "c" combines with another "c".

Crosses:

a) Gray-1 x gray-2

3/4 gray : 1/4 chinchilla

Parental) C ch x C cch

Gamates) C ch C cch

Punnet Square) C cch

C CC Ccch

ch Cch cchch

F1 Genotype) 1/4 CC

1/4 Cch

1/4 Ccch

1/4 cchch

F1 Phenotype) 3/4 Fully Gray animals (CC, Cch, Ccch)

1/4 Chinchilla animals (cchch)

b) Gray-2 x gray-3

3/4 gray : 1/4 chinchilla

Parental) C cch x C c

Gamates) C cch C c

Punnet Square) C cch

C CC Ccch

c Cc cchc

F1 Genotype) 1/4 CC

1/4 Cc

1/4 Ccch

1/4 cchc

F1 Phenotype) 3/4 Fully Gray animals (CC, Cc, Ccch)

1/4 Chinchilla animals (cchc)

c) Gray-1 x chinchilla-1

1/2 gray : 1/4 chinchilla : 1/4 himalayan

Parental) C ch x cchch

Gamates) C ch cch ch

Punnet Square) C ch

cch Ccch cchch

ch Cch cchch

F1 Genotype) 1/4 Ccch

1/4 Cch

1/4 cchch

1/4 chch

F1 Phenotype) 2/4=1/2 Fully Gray animals (Ccch, Cch)

1/4 Chinchilla animals (cchch)

1/4 Himalayan animals (chch)

d) Chinchilla-2 x himalayan

1/2 chinchilla : 1/4 himalayan : 1/4 albino

Parental) cchc x chc

Gamates) cch c ch c

Punnet Square) cch c

ch cchch chc

c cchc cc

F1 Genotype) 1/4 cchch

1/4 cchc

1/4 chc

1/4 cc

F1 Phenotype) 2/4=1/2 Chinchilla animals (cchch, cchc)

1/4 Himalayan animals (chc)

1/4 Albino animals (cc)

6 0

3 years ago

Prokaryotic and eukaryotic cell components

vodomira [7]

Answer:

cells of both prokaryotic eukaryotic is a plasma membrane call cytoplasm

Explanation:

3 0

3 years ago

Over a lifetime, a diet high in cholesterol can cause blood vessels to become less elastic. WHICH CAN LEAD TO HIGH BLOOD PRESSUR

Wewaii [24]

I think it is B.heat stroke

8 0

3 years ago

Read 2 more answers

Which statement is NOT true about all living things?

kompoz [17]

Answer:

living things do not reproduce

8 0

3 years ago

Which of the following is related to the likelihood that a mother develops postpartum depression?

Veronika [31]

Answer:

Option D

Explanation:

Postpartum depression is majorly experienced in woman who has recently entered into motherhood. This form of depression arises because of the complications involved in a child birth. It is strongly driven by sudden changes that come up in the life of a woman after becoming mother such as – loss of job, responsibility of child, tight life schedule etc. some common symptoms of this problem include – mood swing, anxiety, sleeplessness, crying etc.

Hence, option D is correct

4 0

3 years ago

Read 2 more answers