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Hitman42 [59]
3 years ago
15

1. Why does a change in the structure of a protein matter?

Biology
1 answer:
irina1246 [14]3 years ago
8 0

Answer:

B. a mutation to the mRNA transcribed from it

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Answer: Energy is passed up a food chain or web from lower to higher trophic levels. This loss of energy explains why there are rarely more than four trophic levels in a food chain or web. Sometimes there may be a fifth trophic level, but usually there's not enough energy left to support any additional levels.

Explanation: :) Hope it helps

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Which organisms develop gills from pharyngeal arches and later develop lungs to breathe on land?
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3. There is a gene that affects pea pod color and has two alleles: G = yellow and g = green. There is another gene that affects
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A. Mendel in his experiments used two true breeding plants that only express one particular trait. He would chose plants with different versions of the trait and cross pollinate them. So, in this case, Mendel’ s P generation would be:

P: GGWW  x  ggww

B. The possible gametes produced by these first or original parent plants (GGWW and  ggww genotypes of the parents) are:

GW and gw. When an organism makes gametes, each gamete receives just one copy of the gene, which is selected randomly (Mendel’s law of segregation).

C. If the gametes GW and gw are joined, the genotype in the offspring would be GgWw. This is dihybrid organism because it is heterozygous (have two different allelss, one recessive, one dominant) at two different genetic loci, G and W. The offspring represents the F1 generation.

D. If the individuals with the genotype GgWw are crossed with the individuals with the same genotype (GgWw), the possible gametes are GW, Gw, gW, gw. The possible genotypes for the F2 generation are:  GGWW, GGWw, GgWW, GgWw, GGww, Ggww, ggWW, ggWw and ggww. There are nine different genorypes. The genotypic ratio is 1:2:2:1:4:1:2:2:1.

E. F2 generation of offspring of this dihybrid cross has a 9:3:3:1 phenotype ratio. Mendel did similar experiment with his plants and conluded that the pairs of traits in the parental generation (P generation) sorted independently from one another, from one generation to the next.

4 0
3 years ago
Please please help i’ll give that brain thing if you actually help with an explain :(
lorasvet [3.4K]
I think the answer is c
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2 years ago
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WILL GIVE A BRAINLEST
Volgvan
I think the best answer is plant growth. My evidence for this is that to hot or to cold would kill them but if warm andwet environment is perfect to grow 
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2 years ago
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