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kodGreya [7K]
3 years ago
10

. A _____________________________________________ key is used to determine the identity of an organism

Biology
1 answer:
Soloha48 [4]3 years ago
5 0

Answer: A dichotomous key is a tool that allows the user to determine the identity of items and organisms in the natural world. It is the most widely used form of classification in the biological sciences because it offers the user a quick and easy way of identifying unknown organisms.

Explanation:

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Give the sequence of mRNA that would match the following DNA strand
sladkih [1.3K]

Answer:

Below

Explanation:

mRNA is a complimentary copy of a DNA segment (gene) and consequently can be used to deduce the gene sequence. For converting a sequence from mRNA to the original DNA code, apply the rules of complementary base pairing: Cytosine (C) is replaced with Guanine (G) – and vice versa. Uracil (U) is replaced by Adenine (A).

The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.

7 0
3 years ago
Haemophilia is sex-linked and is caused by a recessive allele. A woman’s father has haemophilia, but her husband does not. The w
USPshnik [31]

Answer:

I.

Explanation:

The woman's father has haemophilia so his genotype must be XhY, so his daughter can only have the following genotype: XHXh. Her husband is not a haemophiliac so his genotype must be XHY. There is a 50% chance that the mother's gamete has the recessive allele for haemophilia. If she has a son that son will have a 50% chance of getting the Xh. This also applies to daughters, but they will get the normal allele XH from their father so the daughter will have a 0% chance of developing haemophilia.

7 0
3 years ago
1. Which is more likely to form a fossil-a turtle or a tarantula? Explain the reason for your choice.
Svetllana [295]

Answer:

Turtle

Explanation:

I would think a turtle because of its shell and bones. The shell or bones could leave an imprint in mud that could turn into a fossil or the bones/shell itself could become a fossil. (Because what do they find? dinosaur bones) A tarantula doesn't have bones, is much smaller, and I would think would disappear quickly once it dies.

3 0
3 years ago
Why is biomimicry important for animals? Give an example of biomimicry.​
Anni [7]

Answer:

Biomimicry is important for animals for survival, as looking like a known dangerous animal can lower its chances for being attacked. An example is the monarch butterfly, and its mimicked viceroy butterfly, having nearly identical wings.

Explanation:

4 0
3 years ago
What is diffussion ?<br>Defines osmosis?<br>what is hypotonic solution?​
frozen [14]

Answer:

Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance.

Dictionary

Definitions from Oxford Languages

Search for a word

osmosis

/ɒzˈməʊsɪs/

Learn to pronounce

noun

1.

BIOLOGY•CHEMISTRY

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

2.

the process of gradual or unconscious assimilation of ideas, knowledge, etc.

A hypotonic solution has a lower concentration of solutes than another solution. In biology, a solution outside of a cell is called hypotonic if it has a lower concentration of solutes relative to the cytosol. Due to osmotic pressure, water diffuses into the cell, and the cell often appears turgid, or bloated.

6 0
3 years ago
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