BIOLOGY HIGH SCHOOL

explain the importance of the cytological markers (the translocated segment and the chromosome knob) in the creighton and mcclintock's experiment.

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Answer 1
Answer:

Answer:

Explanation: Cytological markers such as the translocated segment and the chromosome knob play a crucial role in various biological research and applied sciences. These markers have proven to be invaluable tools for understanding genetic diversity, evolution, and gene mapping in organisms. The translocated segment, which is an exchange of genetic material between nonhomologous chromosomes, can provide insights into evolutionary relationships between species. By studying translocations, scientists can determine how different species are related and how genetic material has been exchanged or rearranged during evolution. On the other hand, the chromosome knob is a distinguishing structure found on certain chromosomes that serves as a reliable cytological marker for gene mapping and breeding programs. It facilitates the identification of specific genes associated with particular traits or diseases through cytogenetic techniques. Moreover, these cytological markers enable researchers to develop breeding strategies that aim at improving crops' yield, disease resistance, or other desirable qualities by precisely transferring particular chromosomal segments or genes identified by the presence of knobs and translocations. Hence, understanding the significance of cytological markers is vital for both basic scientific discoveries and practical applications in agriculture and medicine.

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The powerhouse of the cell: that is a term used to describe the ______________, because it's main function is to produce energy for cellular activities.

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The powerhouse of the cell: That is a term used to describe the MITOCHONDRIA, because its main function it to produce energy for cellular activities.

Mitochondria is the host of cellular respiration. This is where the Mitochondria take in glucose and oxygen to produce energy and is distributed all throughout the body as energy-rich molecules of ATP.

Hunter is studying for his ecology test. Which fact would least likely show up in his notes?

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Since you didn't give me a choice, I'll explain what ecology is. Ecology is the study of the ecosystem. Therefore, a question likely to be in the notes would be about how organisms interact with each other. 

Final answer:

The fact that would least likely show up in Hunter's ecology notes is the history of the microscope.

Explanation:

The fact that would least likely show up in Hunter's ecology notes is the history of the microscope. While understanding the history of scientific instruments is important in the context of science, it is not directly relevant to ecology. Ecology focuses on the study of the interactions between organisms and their environment, including concepts like ecosystems, food chains, and biodiversity.

Learn more about Ecology here:

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A heterotrophic multicellular organism that does not have cell walls is called a(n) _______.A. animal
B. plant
C. virus
D. bacteria

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heterotrophic means that the organism is digesting food


multicellular organisms have many cells

so easy what does not  have cell walls is Animal

Oceans and seas can act as a heat reservoir to regulate climates. They can both absorb great quantities of heat in the summerRead theOceans and seas can actas a heat reservoir to regulate climates. They can absorb great quantities of heat in the summer, with very little temperature change. In the winter, oceans and seas release the heat. This is the main reason why coastal climates are milder compared to inland climates.

Which choice correctly explains this phenomenon?

1) the high boiling point of water caused by hydrogen bonding
2) the high specific heat of water caused by hydrogen bonding
3) the high heat of vaporization of water caused by the non polar bonds
4) the high freezing point of water caused by the strength of its covalent bonds

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Answer: number 2) the high specific heat of water caused by hydrogen bonding

Explanation: the high specific heat of water, which is a result of hydrogen bonding, allows oceans and seas to act as heat reservoirs, absorbing and releasing heat to regulate coastal climates and make them milder compared to inland climates.

Which is the longest day of the yearA. summer solstice
B. winter solstice
C. Spring equinox
D. fall equinox
This is science

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A. summer solstice is the correct answer brainliest plz
The longest day of the year would be A. summer solstice

Terrance, whose birth mother drank heavily throughout pregnancy, has a thin upper lip, short eyelid openings, a small head, and a smooth philtrum. His physical growth has been slow, and he shows impairment in memory, attention span, motor coordination, and social skills. Terrance has __________. a. partial fetal alcohol syndrome
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c. fetal alcohol syndrome
d. cytomegalovirus

Answers

Answer:

c. fetal alcohol syndrome

Explanation:

Fetal alcohol syndrome is the disorder that occurs in children who are exposed to alcohol during embryonic development due to alcohol consumption by their mothers.  

Fetal alcohol syndrome is characterized by stunted growth of child and problems associated with the nervous system. Impaired neurological development makes these children slow learners and affects their motor skills.  

Terrance's mother also consumed alcohol during pregnancy and exposed him to alcohol. His alcohol exposure resulted in fetal alcohol syndrome affecting his growth and mental development. Fetal alcohol syndrome also affects the shape and size of facial parts such as lips, eyelids, and head as exhibited by Terrance.  
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