Answer:
In the population of the study, mutation in the achondroplasia gene is unusually high
Explanation:
In this population, the incidence of genetic mutation that leads to achondroplasia would be 6 children for every 30,000 births. In the general population, achodroplasia has an incidence of 1 per 30,000 births, which indicates that in this specific population, the mutation rate is high above average, which can be explained by a high prevalence of the gene in the population.
Achondroplasia is a genetic disease with inheritance of an autosomal dominant pattern and to suffer from the disease, only one copy of the defective gene is necessary.However, in recent years after several studies it has been possible to demonstrate that even achondroplasia could be generated even in new mutations in the germ cells of the parents.
Answer:
Plant cells are eukaryotic cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae. Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or centrioles, except in the gametes, and a unique method of cell division involving the formation of a cell plate or phragmoplast that separates the new daughter cells.
Explanation:
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Answer:
Animal cells do not have a cell wall or chloroplasts but plant cells do. Animal cells are mostly round and irregular in shape while plant cells have fixed, rectangular shapes.
Answer:
Lever and wedge
Explanation:
You use a lever to add strength and the tip of the shovel is a wedge.
There are four trophic levels in the given foodchain, i.e., producer, primary consumer, secondary consumer, and tertiary consumer.
A foodchain is a network of connections in a foodweb that begins with producer organisms and ends with a predator, detritivore, or decomposer species.
In the given foodchain, grass is produces, grasshopper is primary consumer, frog is secondary consumer, while snake is tertiary consumer.
Thus, there are four trophiclevels in the given foodchain.
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Answer: Four
Fun Fact - Locusts are actually species of short-horned grasshoppers, they often gather in large swarms and can destroy entire fields of crops, because a single grasshopper can eat half its body weight in plants per day.
2. False
Answer:
yes true Crown colour evolves by natural sselection.
Explanation:
A.Bacteria are larger than viruses but are still small enough to enter cells.
B.Both bacteria and viruses are surrounded by protective coverings, through the composition of each covering may be different.
C. Only bacteria can acquire new characteristics, which makes them more difficult to treat.
D.Bacterial infections such as diphtheria and tetanus cannot be prevented by vaccines.
Answer: B
Explanation: Bacteria are larger than viruses but are still small enough to enter cells.
The argument supported by the information in the table is that both bacteria and viruses are surrounded by protective coverings, but the composition of each covering may be different.
The argument supported by the information in the table is option B. Both bacteria and viruses are surrounded by protective coverings, but the composition of each covering may be different. For example, bacteria have a rigid cell wall made of peptidoglycan, while viruses have a protein coat called a capsid.
This difference in composition affects how bacteria and viruses interact with their environments and how they can be treated.
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Answer:
Extinction
Explanation:
Answer:
extinction if they are hunted so much