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s2008m [1.1K]
3 years ago
8

Which microscope did Robert Hooke use to study tree bark?

Biology
2 answers:
aleksandrvk [35]3 years ago
8 0
Robert Hooke built a compound microscope to study tree bark.
Andru [333]3 years ago
5 0
Robert Hooke built his own compound microscope to examine tree bark.
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Which word best explains the changes shown in these photographs?
balu736 [363]

Answer:

different  skin color shorter longer hair

Explanation:

8 0
3 years ago
A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. if he marries a woman who is also
kakasveta [241]
<span>F- allele for freckles
f- </span><span>allele without freckles

1) The man is heterozygote and has freckles, its indicating that the allele for freckles is dominant.
A cross between him and a woman who is also </span><span>heterozygote: Ff x Ff
it would result in the following probabilities:
- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff

Their son would have a probability of 75% of being born with freckles.


2) The cross resulted in this probabilities:
</span><span><span>- 1/4 - homozygote with freckles: FF
- 2/4 - </span><span>heterozygote with freckles: Ff
- 1/4- </span><span>homozygote without freckles:ff
So, the chance of being born heterozygote for this gene is 2/4, which is the same as half (50%).
</span></span>
6 0
3 years ago
How is this information carried within the DNA
serious [3.7K]
<h2>Answer: Genetic information is carried in the linear sequence of nucleotides in DNA. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs.</h2>

Explanation:

<h2>The information carried by a DNA molecule is in Genetic information resides in the order of the nucleotides on a DNA molecule. ... They hypothesized that there must be a code that linked the nucleotide sequence in a gene to the amino acid sequence in a protein. Each nucleotide code is called a codon.</h2>

6 0
2 years ago
In ________and ________ no energy is used. Which one needs a helper to get things across?__________
MissTica
In DIFFUSION AND FACILITATED DIFFUSION no energy is used. The one that needs a helper to get thing across is FACILITATED DIFFUSION.<span> Facilitated diffusion involves the diffusion of materials across the cell plasma membrane with the aid of membrane proteins such as carriers and channels. The process of diffusion does not need a carrier, the molecules to be transported just move on their own from the area of high concentration to the region of low concentration until the concentration in the space become uniform.</span>
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The diagram below represents a portion of a molecule found in cells of the human body.
insens350 [35]
The answer is 3
Synthesize enzymes from organic molecules
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3 years ago
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