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ryzh [129]
3 years ago
14

What are genes located and where do they come from

Biology
1 answer:
Ede4ka [16]3 years ago
3 0
Genes, otherwise known as DNA is located inside of a cell nucleus. And... theres no telling where it comes from.
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A student melts 50.0 grams of ice using 16650 j of energy. what is the heat of fusion of ice?
mojhsa [17]
The heat of fusion of the ice is the amount of energy that is required in order to melt one gram of ice. In this item, in order to solve for the heat of fusion, we simply have to divide the given energy by the mass. 
                     heat of fusion = 16650 J / 50 g = 333 J/g
Thus, the heat of fusion of the ice is 333 J/g. 

5 0
3 years ago
What is the independent variable?
choli [55]

Answer: dog food brand

Explanation: it doesn’t depend on weight of dog, type of dog, etc.

3 0
3 years ago
Read 2 more answers
Answer correctly 50 Points
Natali [406]

1. The main aim of the Human Genome Project was to determine the DNA Sequence of every human gene.

2. Variation in skin colour is an example of polygenic inheritance

This Human Karyotype is unusual because it has an extra chromosome at chromosome 21.

Klinefelters syndrome is shown in the second figure

Explanation:

1. The Human Genome Project's main goal was to sequence all the 30,000 genes and 3 million base pairs in their makeup for the early detection of diseases, gene therapy and molecular level studies.

2. Human skin colour is determined by the pigment melanin. The Dominant allele is responsible for dark colours as it produces more melanin. The melanocortin 1 receptor (MC1R) gene and Tyrosinase enzyme codes for the human skin colour. Polygenic inheritance are the traits which are controlled by one or more genes.

<u>figures:</u>

<u>The extra chro</u>mosome at the 21st chromosome pairs is called trisomy 21 or Down's Syndrome. It is due to the abnormal cell division/meiosis resulting in an extra X chromosome. This leads to thechanges the in physical development of  the individual.

Klinefelter's Syndrome: There are 47 chromosomes and 2 or more X chromosomes in this syndrome of males. The resulting male suffering from Klinefelter would be sterile and have poorly developed testicles.

7 0
3 years ago
How does the human brain store and retrieve memories?
krek1111 [17]

Answer: After consolidation, long-term memories are stored throughout the brain as groups of neurons that are primed to fire together in the same pattern that created the original experience, and each component of a memory is stored in the brain area that initiated it (e.g. groups of neurons in the visual cortex store a sight, neurons in the amygdala store the associated emotion, etc).

Explanation:

3 0
3 years ago
Many people have received the measles vaccine, which can prevent this very serious or even fatal disease. How does receiving a m
postnew [5]

Answer:

the vaccine causes the immune system to produce antibodies to the virus that causes the measles

3 0
2 years ago
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