Is it True or false?

Sex-linked genes are located on sex chrosomomes and that are inherited together with them. If a X⁺X⁺ red-eyed female drosophila mates with a red-eyed male, 0% of the progeny will have white eyes. Option 2.

Genes are physically located and arranged in the chromosomes.

Each chromosome contains several genes that vary in length and code for different traits. So, all chromosomes are different, except for the homologous ones.

When talking about sex-linked genes, we refer to genes located in one of the sex chromosomes. In general, genes are linked to the X chromosome.

Being linked to one of the sex chromosomes means that these genes, and their corresponding alleles, will only be inherited together with the chromosome.  

In the case of X-linked genes, a male that inherits the X chromosome from a heterozygous female can express either the dominant or the recessive trait, depending on which allele it got from the mother.

Eye color in drosophila is an x-linked trait and the gene responsible for the trait expresses complete dominance. This means

Genotypes          Phenotypes

X⁺X⁺                      Red-eyed female

X⁺X⁻                      Red-eyed female

X⁻X⁻                      White-eyed female

X⁺Y                        Red-eyed male

X⁻Y                        White-eyed male

If a red-eyed female (X⁺X⁺ or X⁺X⁻) mates with a red-eyed male (X⁺Y), the progeny will ONLY express red eyes.

This is because each parent provides an X chromosome to the progeny.

The male can only transmit the X⁺ chromosome that codes for red eyes.

Considering complete dominance, even if the female transmit the X⁻, the progeny will express the red phenotype.

The correct option is 2,  0% of the progeny will have white eyes.

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Complete question,

If a homozygous red-eyed female drosophila mates with a red-eyed male drosophila. what proportion of the female offspring will have white eyes?

The most plentiful microorganisms and the most pathogenic organisms are: Bacteria. So, option D is accurate.

Bacteria are the most abundant microorganisms on Earth and can be found in various environments, including soil, water, and the human body. They have diverse roles and can be beneficial or pathogenic. While many bacteria are harmless or even beneficial to humans, some bacterial species have the potential to cause diseases and infections. Examples of pathogenic bacteria include Escherichia coli, Staphylococcus aureus, Streptococcus pneumoniae, and Mycobacterium tuberculosis. These bacteria can cause a wide range of illnesses, ranging from mild to severe infections.

While other microorganisms like protozoa, fungi, helminths (parasitic worms), and viruses can also cause diseases, bacteria are generally considered the most plentiful microorganisms and the most significant contributors to both beneficial and pathogenic roles in various ecosystems, including human health.

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Answer:

true :)

Explanation:

Answer:

plant

Explanation:

because plant is a multicellular organism and multicellular organism are full of ribosomes

Cells full of ribosomes would most likely be plant cell.

What is ribosomes?

A ribosome is a complex molecular machine found inside the living cells that produce proteins from amino acids during a process called protein synthesis.

What is the function of ribosome?

Ribosomes have two main functions decoding the message and the formation of peptide bonds.

Hence ,A is correct option

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Answer: common iliac vein, great sphanous, inferior vena cava

Explanation:

Answer:

What are the questions?

Explanation:

Answer:

False

Explanation:

They are different materials

Answer:

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products.

Explanation:

Answer:

true

Explanation:

Carbon enter the plants , plants eaten by animals and animals die with carbon in their system decomposed.

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a. True. It is estimated that less than 62% of water and foodborne diseases are not reported.

Water and foodborne diseases are a significant public health concern worldwide, and many cases go unreported due to a variety of factors. These diseases can be caused by a range of pathogens, including bacteria, viruses, and parasites, which can contaminate food and water sources. One reason that many cases go unreported is that symptoms of these diseases can be relatively mild and may not be immediately recognized as being caused by a food or waterborne illness. Additionally, many people may not seek medical care for these types of illnesses, particularly in areas where access to healthcare is limited. Underreporting of food and waterborne diseases can make it difficult to accurately track the incidence and prevalence of these illnesses, which can in turn make it challenging to develop effective prevention and control strategies.

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Answer:

The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.

Hopes this helps :)

Answer:

Agricultural economists have management-related jobs in agribusiness firms. They use modern analytical management tools to make profitable decisions. Agricultural economists conduct financial analysis, develop marketing plans, and set up optimal production schedules in U.S. and international food and fiber firms. They often begin their careers in management or production operations or as sales representatives, then progressively take on increasing responsibility for decision-making. Most agricultural economists spend a great deal of their work lives analyzing alternative decisions.

Agricultural engineers apply basic science and engineering principles as they design solutions to engineering problems in agricultural production. Agricultural engineers design agricultural machinery and facilities such as tractors, implements, housing, storage and handling facilities, irrigation and drainage systems, and soil conservation measures.

Agronomists deal with field crops and soil management. They develop new varieties of crops, analyze soil structure, investigate soil chemistry, and study the physics of water movement in soil. Agronomists are concerned with the environment. You will find agronomists teaching, conducting business, and doing research in all parts of the food industry all around the world.

Animal nutrition is an art that combines the sciences of animal nutrition, animal behavior, biochemistry, economics, and food processing with animal production techniques. Animal nutritionists formulate diets for domestic, companion, and exhibit animals. They work with mammals, birds, and fish. The diets they create must be nutritionally sound, good-tasting, and economical for the ages and types of animals that will follow them.

Animal physiologists study how animals function. That includes how animals interact with things outside them, such as temperature or air quality, plus things inside them, such as disease, poisons, or diet.

In your first job in aquaculture, you will probably stock ponds, feed fish, monitor water quality, check for diseases, harvest fish, and maintain equipment. If you become a manager, you will supervise pond workers, plan production schedules, purchase feed and equipment, and plan harvesting, processing, and marketing.

Biochemists define the chemical events that cause biological phenomena in organisms. They use what they learn in their research to develop and market agricultural, consumer, and medicinal products. Most biochemists conduct either basic or applied laboratory research. Some work in marketing and technical sales. Some may move into research and development management positions. A few pursue careers in law or science writing.

Explanation:

agricultural sites because they have to see their work in action at special agricultural lab sites

Answer:

Mushrooms are in kingdom Fungi and humans are in kingdom Animalia

Explanation:

These two kingdoms are similar in that they are both in Domain Eukarya, meaning they have eukaryotic cells (have a nucleus, membrane bound organelles, are relatively large and organized). Both are also heterotrophic, meaning they eat other organisms to get energy. They are different in that fungi cells have cell walls made of chitin while animals do not have cell walls. Fungi tend to live pretty sedentary lives, and while that is true for some animals, that is not true of most. Fungi are also decomposers while animals are consumers.  

Answer:

D

Explanation:

A theory is only like a hypothesis a well supported observation/guess.

Answer:

Prokaryotic cells

Explanation:

Answer:

Humans get oxygen via breathing through the nose or mouth.

Flatworms get oxygen through their pores via the process of diffusion.

Plants get oxygen through the stomata.

Explanation:

Answer:

Tundra

Explanation:

to survive the long cold winters and to breed and raise young quickly during the winter they migrate

Answer:

The answer to the question is A

Explanation:

The main indicator of a woody plants age like trees are the amount of rings inside, for example if a tree had twenty rings the tree would be twenty years old.

Answer:

Fossils of many individuals of the same species together

Answer:

a good listener, has good social skills, and willing to help

Explanation:

Answer:

Genetically modified organisms (GMOs) are used in biotechnology for medicine to produce therapeutic proteins, such as insulin and growth hormone, and to create genetically modified cells for use in gene therapy. Additionally, GMOs are also used in the production of vaccines.

Answer: How? I shall explain...

Explanation:

So Biotechnology is the mix of natural sciences and engineering sciences in order to achieve applying organisms, cells and organic matter for products and services.

Think about if someones DNA has malfunctioned and the scientists need to change it. They use bio-engineered  cells to go in the nucleolus of the cell and edit the DNA. (To the best of my tiny knowledge)

Scientists can't perform molecular sized operations for cells and organisms, so they use bio-engineered cells to do it. (Tell me if I'm wrong)

They can also create situations in contained environments to experiment with modified cells to see the results.

Answer: Anabolism builds complex molecules from simpler ones, while catabolism breaks large molecules into smaller ones.

Explanation:

a-Glycerol reacts with fatty acids to make lipids:

CH2OHCH(OH)CH2OH + C17H35COOH  →  CH2OHCH(OH)CH2OOCC17H35  

Simple sugars combine to form disaccharides and water:

C6H12O6 + C6H12O6   →  C12H22O11 + H2O

c-During cellular respiration, glucose and oxygen react to yield carbon dioxide and water

C6H12O6 + 6O2  →  6CO2 + 6H2O

In cells, hydroxide peroxide decomposes into water and oxygen:

2H2O2  →  2H2O + O2

Answer:

Explanation:

(a.) The statement is True. Cellular structures and molecules do indeed vary greatly in size, number, and distribution. Cells are complex entities composed of various organelles, molecules, and macromolecules that carry out specific functions.

Indeed, the size, quantity, and distribution of cellular structures and molecules vary substantially. Cells are intricate structures made up of different organelles, chemicals, and macromolecules that perform specialized tasks. The size of these parts can vary greatly, from tiny molecules like ions or metabolites to enormous organelles like the nucleus or mitochondria. Depending on the cell type and its metabolic needs, the amount of these structures inside a cell can also change. Additionally, the arrangement of molecules and cellular components within a cell might be non-uniform, with some organelles being restricted to particular areas or compartments. Cellular biology is fundamentally characterized by the variation in the size, quantity, and distribution of cellular components.

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