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daser333 [38]
2 years ago
5

Plant seedlings were treated with a range of concentrations of coumarin, a small organic compound.

Biology
1 answer:
Nuetrik [128]2 years ago
4 0
(True)-After one week, seedling height was taken as a measure of plant growth.
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What happens to the speed of light as it exits the air and enters a glass of water?
neonofarm [45]

Answer:

I believe its D

Explanation:

because why would it slow down or speed up

5 0
3 years ago
Cystic fibrosis is most common in individuals of Northern European descent, affecting 1 in 3200 newborns. Assuming that these al
IgorLugansk [536]

Answer:

0.0177

Explanation:

Cystic fibrosis is an autosomal recessive disease, thereby an individual must have both copies of the CFTR mutant alleles to have this disease. The Hardy-Weinberg equilibrium states that p² + 2pq + q² = 1, where p² represents the frequency of the homo-zygous dominant genotype (normal phenotype), q² represents the frequency of the homo-zygous recessive genotype (cystic fibrosis phenotype), and 2pq represents the frequency of the heterozygous genotype (individuals that carry one copy of the CFTR mutant allele). Moreover, under Hardy-Weinberg equilibrium, the sum of the dominant 'p' allele frequency and the recessive 'q' allele frequency is equal to 1. In this case, we can observe that the frequency of the homo-zygous recessive condition for cystic fibrosis (q²) is 1/3200. In consequence, the frequency of the recessive allele for cystic fibrosis can be calculated as follows:

1/3200 = q² (have two CFTR mutant alleles) >>  

q = √ (1/3200) = 1/56.57 >>

- Frequency of the CFTR allele q = 1/56.57 = 0.0177  

- Frequency of the dominant 'normal' allele p = 1 - q = 1 - 0.0177 = 0.9823

4 0
3 years ago
Describe the evolution of modern whales and dolphins using the fossil evidence
HACTEHA [7]
Whales are related back to a hairy, 4-legged land mammal that eventually led to the formation of flippers without phalanges, a blow hole that became more dorsal, and other defining features. All of this has been backed by fossil evidence, especially that found within a certain desert region (can’t remember the name) that has a vast amount of whale fossils from many different time periods
4 0
3 years ago
What dictates how we assemble amino acids to build proteins, tissue, and organs?
Nina [5.8K]

Answer:

C- DNA

Explanation:

DNA is responsible for protein synthesis.

6 0
3 years ago
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A) climate change...........

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