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Lilit [14]
3 years ago
6

What role do plant hormones play in phototropism

Biology
1 answer:
Delvig [45]3 years ago
8 0
The primary function of the auxin hormones is to elongate plant cells in the stem. For instance, auxins are the hormones responsible for phototropism, the growth of a plant toward the light.
I hope that helped in a way!!
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As the best-adapted members of a species produce offspring and pass on their favorable characteristics to succeeding generations
Serggg [28]

Answer:

The entire population will gradually become more similar to the best-adapted members.

Explanation:

Natural selection will cause the best-adapted members to have a better chance of survival and repopulation.

8 0
2 years ago
1) How is DNA condensed to form a chromosome?
frosja888 [35]

Answer:

Hello! Here are the answers:

  1. Chromosomes are a highly condensed form of a combination of DNA and protein called chromatin. DNA strands (negatively charged) are tightly wound around these proteins called histones (positively charged) to form chromosomes.
  2. Mechanism genes code for for proteins that govern life processes. These genes or portions of DNA  are called exons. DNA segments between these exons are called introns that strictly code for regulatory proteins and also contain genetic regulatory elements (DNA sequences that control gene expression).
  3. Gene expression is the process of translation of DNA sequences into proteins. The genetic code is the nucleotide sequence in the DNA itself that codes for different amino acids that combine together to form a functional protein.

Explanation:

* 2. The intronic regions are misleadingly referred to as "junk DNA" but introns code for crucial regulatory elements that control gene expression.

* 3. The genetic code determines the sequence of amino acids in various proteins.

7 0
3 years ago
which of the following is not a condition that must be made for hardy-weinberg equilibrium 1.no mutation 2.no migration 3.domuna
kow [346]

Answer:

3.dominant alleles more frequent than recessive alleles

Explanation:

To achieve hard-Weinberg equilibrium, certain conditions must be made.

These conditions are:

1. There is noo mutation,

2. Existence of random mating,

3. There should be no natural selection

4. There is the infinite population size

5. No migration

Hence, in this case, the correct answer is option 3, which is not a condition to be made for Hard-Weinberg equilibrium

4 0
2 years ago
Which best explains the importance of a selectively permeable cell
IrinaVladis [17]
C It controls what is allowed to enter or leave the cell.
4 0
2 years ago
Pepsin, an enzyme found in the stomach, acts best at a ph of about 2, but it is not active at a ph of 7. why
ipn [44]
It is only active at a pH of around 2 because that is around the same pH as the gastric juices in the stomach which is where pepsin is used to break down proteins.
3 0
3 years ago
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