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3 years ago

How many amino acids are found and in living organisms

Biology

2 answers:

Ivenika [448]3 years ago

8 0

Answer:

There are 20 amino acids found in living organisms

posledela3 years ago

4 0

All the millions of different proteins in living things are formed by the bonding of only 20 amino acids to make up long polymer chains.

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A deletion or insertion of one or more nucleotides may result in a frameshift mutation true or false

JulsSmile [24]

Answer:

true!!

Explanation:

A frameshift is when the frames of the three nucleotides shift and an insertion or deletion will do that

5 0

3 years ago

In a certain species of plant, the allele to produce green melons (G) is dominant over the allele to produce yellow melons (g).

marishachu [46]

Answer:

4.26

Explanation:

Let the green-melon parents be Gg, then we expect the cross with the yellow-melon plant gg so as to produce 50% Gg and other 50% of gg offspring. What we observed was that 53 green and a 41 yellow. Based on the total number of 94 offspring , we expected half and a half ratios to be 47 of each color.

Observed(o) Expected(e) (o-e) $(o-e)^2$ $(o-e)^2/e$

Green-melon plant 53 47 6 36 0.766

Yellow-melon plant 41 47 -6 36 0.766

Therefore the chi-square value is 1.53 which is less than the critical value of 3.84. Therefore, the null hypothesis is accepted.

4 0

3 years ago

Suppose the DNA sequence for the first message in Part B began with TGT CGA instead of TGA CGA. Would the message change? Why or

alexgriva [62]

The message would change because each base has a specific pair that it bonds with. So the original strand's matching sequence would be (ACT GCT) if they were to change the last letter of the first set of 3 numbers, it would be (ACA GCT), and you can see there is a difference in the first sequence of bases. Hope this helps (:

7 0

3 years ago

Four reasons why indigenous breed indicated above would be superior to exotic breeds

elena55 [62]

Answer:

The following are the reasons why the Tuli breed would be superior to exotic breeds:

Tuli breed was augmented in Zimbabwe.

Tuli has a range of colors and has a short coat.

Cross-breeding is suitable for the Tuli breed.

5 0

3 years ago

The _____ is a membrane within the uterus that permits the exchange of nutrients and waste products between the mother and her d

Irina-Kira [14]

Placenta

It also does not allow the maternal and fetal bloodstreams to mix

5 0

3 years ago