BIOLOGY HIGH SCHOOL

What does a gene do ?

Answers

Answer 1
Answer: They are found in almost every cell's nucleus and are made from strands of DNA (deoxyribonucleic acid). Segments of DNA called "genes" are the ingredients. Each gene adds a specific protein to the recipe. Proteins build, regulate and maintain your body.

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Which organism obtains its energy from dead or decaying matter?
Introducing invasive species to an ecosystem results in an increase in biodiversity.true or false ?
Saguaro cacti, elf owls, horned lizards, and fire ants all share the same area of a desert. Which of the following groups is a population?all of the species living in that area of the desertall of the fire ants living in that area of the desertall of the plants growing in that area of the desertall of the elf owls, horned lizards, and fire ants living in that area of the desert
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In the 1920's, a woman by the name of Anna Anderson claimed to be the Grand Duchess Anastasia, the youngest daughter of Tsar Nicholas II. However, DNA testing confirmed that she was not who she claimed to be. Which of the following uses of biotechnology does this example best demonstrate?

CANT GET WRONGThe human respiratory system consists of various organs that work together to accomplish the vital task of bringing oxygen into the body. One organ listed is part of a system that helps with digestion rather than respiration. The organ that is incorrectly paired with a respiratory function is the
A) nose - filters and warms air
B) bronchi - moves air into the lungs
C) diaphragm - muscle that powers breathing
D) esophagus - moves air from the nose into the lungs

Answers

d. esophagus moves air from nose into the lungs

List the four basic principles of genetics that Mendel discovered in his experiments. Briefly describe each of these principles.

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1.  Fundamental theory of heredity - Mendel discovered that traits (dominant or recessive) cannot be blended. They remain to be distinct as they are passed on to future offspring. Inheritance of such traits involves the passing of certain "inheritance units", which we now call genes or alleles.

2.  Principle of segregation - Mendel said that the inheritance units of a species are separated into reproductive cells through meiosis. When fertilization occurs, the alleles reunite, but now come from two parent sources.

3.  Principle of independent assortment- parents with more than one trait do not always produce offspring that have matching traits. Traits are passed on independently to subsequent generations.

4. Dominance - dominant traits have better chances of appearing on the offspring's phenotype

What is the definition of photosynthesis?a) the process of converting the energy in carbohydrate molecules into ATP
b) the process of changing light into stored chemical energy in the form of lipids
c) the process of changing light into stored chemical energy in the form of sugars
d) the process of converting the energy in oxygen molecules into ATP

Answers

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

If an animal cell shrinks it was probably placed in a

Answers

Answer:

Hypertonic solution

Explanation:

A solution with higher solute concentration is called as hypertonic solution while the one with less solute concentration is termed as hypotonic solution. Osmotic movement of water occurs from hypotonic to hypertonic solution to balance the concentration of solution. When an animal cell is placed in a hypertonic solution, it loses water through osmosis and shrinks.

An animal cell will shrink if it is placed in a saline/ salty solution (hypertonic solution). The salt will absorb the water from the cell through osmosis.

Ture or false the resurrection of jesus is a historical event

Answers

Answer:

True

Explanation:

Along with the Bible, there are multiple sources siting and confirming the resurrection, along with many eye witnesses and accounts.

Parkinson’s disease is a brain disorder that may be caused by mutations in several genes that code for the production of alpha-synuclein. Individuals who have Parkinson’s disease exhibit symptoms such as uncontrollable tremors, difficulty walking, and loss of coordination. How might geneticists determine where the mutations that cause Parkinson’s disease are located?A. PCR analysis
B. gene mapping
C. DNA fingerprinting
D. STR analysis

Answers

The right answer is gene mapping.

The act of mapping consists of determining the relative positions of the loci (genes or DNA sequences) on a chromosome. The binding maps are obtained from the recombination frequency between the loci. Physical maps are generally obtained by the use of in situ hybridization of cloned DNA fragments with metaphase chromosomes, or the use of somatic or hybrid irradiation hybrids.

Through gene mapping, mutations that cause Parkinson’s disease can be identified.

Further Explanation:

Parkinson’s disease is known to be a nervous system disorder that is progressive in nature and affects the movement of an individual. The symptoms begin slowly and generally start with a small very visible tremor in just one upper extremity. These tremors are common; however, the disorder also leads to hardness and restriction of movements. The familial cases of this can be the result of mutations in the following genes, LRRK2, PARK7, PINK1, PRKN, and SNCA.

Gene mapping illustrates the methods which are used to detect the locus of the gene as well as distances between the genes. The technique generally works by collecting molecular markers on their provided genome positions. These markers are in all types and can be viewed as one special kind of genetic marker while constructing the genome maps.

Learn more:

  1. Learn more about aerobic and anaerobic respiration brainly.com/question/1544781
  2. Learn more about cellular respiration brainly.com/question/543244
  3. Learn more about alcoholic respirationbrainly.com/question/7419007

Answer Details:

Grade: High school

Subject: Biology

Chapter: Genes and genetic diseases

Keywords:

Gene, gene mapping, mutations, markers, Parkinson’s disease, genome, distances, techniques, maps.

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