all the offspring of a cross between a black-eyed mendelien and an orange-eyed mendelien have black eyes. what is the expected phenotypic ratio of a cross between two orange-eyed mendeliens?

Answers

Answer 1

Answer:

100% orange-eyed mendeliens

Explanation: rr and rr produce rr, rr,rr,rr


Related Questions

the general function of an enzyme in the body is to

Answers

Answer: Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.

The example of the Great Barrier Reef is used to illustrate,
A) the insignificance of coral reefs
B) the lack of diversity in the ecosystem
C) the consequences of increasing acidity
D) the problems that too much algae can create

Answers

The example of the Great Barrier Reef is used to illustrate the consequences of increasing acidity. It is one of the wonders of the natural world.

The Great Barrier Reef represents one of the wonders of the natural world and the largest coral reef system worldwide.

This barrier extends from shallow estuarine regions to the deep marine environment, more than 14 latitude degrees.

Ocean acidification stops the development of the Great Barrier because Reef development is supposed to cease at pH 7.8.

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agnatha are what because they live off the blood of other fish

Answers

Answer:

They live off of the blood of another fish, they must have a host, so that makes these fish parasitic.

Explanation:

Can anyone explain capillary action in the circulatory system in simple terms?​

Answers

Please make me as brainlist

Capillary action is defined as the spontaneous flow of a liquid into a narrow tube or porous material.

A cross between a red cow and a white bull produces an offspring with a roan color (a spotted red-and-white color). This exhibits what type of genetic inheritance?

Answers

Answer:

co-dominance

Explanation:

in co-dominance both parents are dominant

what is the hierarchical structural organization in a multicellular organism

Answers

Answer:

cells, tissues, organs, and systems

Answer:

cells, tissues, organs, and systems

Explanation:

Genes are long segments of DNA that code for ____________________
Group of answer choices

carbohydrates

proteins

lipids

Answers

Answer:

protein

Explanation:

a specific protein tht functions in one or more types of cells in the body.

what is the difference between threatened and endangered species

Answers

Endangered is when group of species are at the edge of extinction.
Threatening is when group of species are at the risk of extinction in future.

Big brain time The sun is a planet and we are on it true or false >:)!!!!

Answers

Answer:

False.

Explanation:

The Sun is a Star, the Earth orbits the Sun.

which type of stem cell gives rise to red and white blood cells?

Answers

Answer:

hematopoietic stem cells

Explanation:

Why does Earth experience different seasons?


the revolution of Earth on its own axis in 24 hours

the revolution of Earth on its own axis in 24 hours

the presence of the Moon in between the orbit of the Sun and Earth

the presence of the Moon in between the orbit of the Sun and Earth

the distance between the Sun and Earth changing throughout the year

the distance between the Sun and Earth changing throughout the year

the variation in the amount of sunlight received due to the tilt of Earth’s axis

Answers

Answer: The answer is because of the variation in the amount of sunlight received due to the tilt of Earth’s axis.

Fill in the blanks.

- Enzymes are _____ that _____ _____ chemical reactions.

- Each enzyme needs to be the ______ ______ to match the reaction it helps.

- _____ _____ _____ and _____ can denature, or change an enzymes shape.

- Wrong __= ____ = __ __ __ __

Answers

Answer: Enzymes are catalysts that speed up chemical reactions

The rest are up to your teacher I don’t know how they might have worded it

pH, heat, cold, salinity, radiation are all things that can denature an enzyme, and Im not quite sure what the last one might be

good luck man

Explanation:

how long does it take for a humming bird to flap its wings once?

Answers

Answer:

not really sure but i know it takes 10-15 times per second. also you might have to do some math i hope this helped a bit and sorry i couldn't give you an exact answer

How could the changes made to the amino acid sequence influence phenotype changes?​

Answers

Due to change in sequence there would be change in Protein structure hence in phenotype

A change in the gene's DNA sequence can lead to a change in the protein's amino acid sequence.

Protein structure orders

The sequence of a protein is determined by the DNA of the gene that encodes that protein (or that encodes a portion of the protein, for multi-subunit proteins).

A change in the gene's DNA sequence can lead to a change in the protein's amino acid sequence.

Even changing just one amino acid in the protein sequence can affect the protein's overall structure and function. For example, a single amino acid change is associated with sickle cell anemia, an inherited disease that affects red blood cells.

Learn more about amino acids in brainly.com/question/1458347

the four most abundant elements in living organisms are

Answers

Answer:

CHON is a mnemonic acronym for the four most common elements in living organisms: carbon, hydrogen, oxygen, and nitrogen

Explanation:

hope it helps you

In a chain of consequences after a forest is cleared, what is an immediate, direct impact?
O habitat is destroyed
O the greenhouse effect increases
O species go extinct
O carbon dioxide is sequestered at lower rates

Answers

Answer:

I think its the habitat is destroyed

PLEASE HELP, I WILL MARK YOU BRAINLIEST

What are the advantages and disadvantages of seed and spore reproduction? Justify whether seed reproduction or spore reproduction is more beneficial for the continuation of an organism.​

Answers

hi have a great day

No Water Required

Seeds do not necessarily need water to germinate and grow, although some require water to soften the seed coat. Large seeds in dry conditions will hold water and allow the growing plant to grow deep roots without the need for rain or additional water.

Fully Developed Embryo

Inside each seed is a fully developed embryo that is ready to begin growing. Many seeds go through a dormancy period, which is a period when the seed will not germinate and begin growing. When conditions are right, the embryo germinates and begins growing. Having an embryo already grown gives a seed plant a better chance at survival as opposed to a spore.

Nourishment

Each seed contains nourishment for the embryo inside the seed. The endosperm is the tissue that surrounds the embryo inside the seed. The embryo uses nourishment provided by the endosperm as a jump start to begin growing.

The Seed Coat

The seed coat is one major advantage seeds have over spores. A spore is a single-celled organism that develops into a plant or fungus when the conditions are right. The spore has no outer protection.

Answer:

bailey is so smart good job

WILL GIVE BRAINLIEST!!

Most of the world's iron ore, including that found in northern Minnesota, formed during the middle Precambrian period, ranging in age from 1.8 to 2.5 billion years old. They are composed of alternating layers of iron-rich material, most often magnetite or hematite, and silica. These iron oxide minerals formed on the ocean floor, creating the banded iron deposits you see here. What was the source of the oxygen that helped to produce these deposits?

A) The oxygen that was released into the atmosphere as a by-product of photosynthesis caused iron deposits to oxidize creating the iron oxide minerals.

B) Photosynthetic organisms making oxygen as a by-product of photosynthesis and the oxygen reacted with the iron dissolved in seawater to form iron oxide minerals.

C) The decomposition of carbon-based life forms in the oceans released oxygen and carbon dioxide. These gases reacted with the iron deposits forming the minerals mentioned.

D) In Earth's early biosphere, there were not organisms that underwent aerobic cellular respiration and an excess of oxygen built up in the atmosphere. This oxygen reacted with iron deposits to form iron oxide minerals.

Answers

Answer:

b

Explanation:

Answer:

) Photosynthetic organisms making oxygen as a by-product of photosynthesis and the oxygen reacted with the iron dissolved in seawater to form iron oxide minerals.

Explanation:

Which part of a cell is used by a virus to produce its protective protein coat?

Answers

A ribosome is the part of a cell is used by a virus to produce its protective

protein coat.

Virus produces a protective protein coat known as capsids  which serves as

a means of protection for the organism. The capsids are produced through

the organelle known as ribosome.,

The ribosome acts as a site for protein synthesis in organisms and the

capsids being made up of protein means the ribosome was used to

produce its  protective protein coat.

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The Chromosomes separate & move AWAY
from each other towards the POLES of
the cell during:

Cytokinesis

Telophase

Anaphase

Prophase

Metaphase

Please answer I’d appreciate it a lot

Answers

Answer:

These phases are prophase, prometaphase, metaphase, anaphase, and telophase.

Explanation:

Answer:

Anaphase

Explanation:

Anaphase is when the sister chromosomes seperate towards the poles of the spindle.

how widespread was yellow fever during the 1600s and 1700s?​

Answers

Answer:

The first yellow fever outbreaks in the United States occurred in late 1690s. Nearly 100 years later, in the late summer of 1793, refugees from a yellow fever epidemic in the Caribbean fled to Philadelphia. Within weeks, people throughout the city were experiencing symptoms.

what are the final products of catabolic reactions?

Answers

Catabolism breaks down large molecules (such as polysaccharides, lipids, nucleic acids, and proteins) into smaller units (such as monosaccharides, fatty acids, nucleotides, and amino acids, respectively).

I hop this helps! :)

What is coal composed of?

Answers

Answer:

Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material.

Explanation:

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called?

Answers

homeostasis:is the state of steady internal, physical, and chemical conditions maintained by living systems.

Explain how ADH is involved in the regulation of water in the body ​

Answers

Answer:

Antidiuretic hormone binds to receptors on cells in the collecting ducts of the kidney promotes reabsorption of water back into circulation, These channels transport solute-free water through tubular cells and back into blood, leading to a decrease in plasma osmolarity and an increase osmolarity of urine.

Why are enzymes important in digestion?
A. They allow reactions to occur rapidly and at
body temperature.
B. They change inorganic compounds into organic
ones.
C. They let reactions repeat without energy.
D. They control photosynthetic processes.

Answers

Answer:

A. They allow reactions to occur rapidly and at

body temperature.

I hope this helps you

Why do modern Psychologists use trait theory as the method of helping individuals understand their personality?

Answers

Trait approach is one of the most vital areas of study in psychology that helps identify a person's personality. Traits can be defined as a stable characteristic that causes a person to depict a response to any situations in certain ways. Trait theory approach focuses on personality differences between individuals.

Leaves appear green because the green portion of the light that strikes them out is

Answers

Answer:

reflected

Explanation:

Whatever color your eye sees is the reflected light. So all colors absorbed.

do plants need oxygen to make sugar?

Answers

Answer:

No. Plants MAKE sugar. They "Breath in" Carbon Dioxide

Answer:

yes

Explanation:

oxygen is used in cellular respiration which creates Co2 which in turn helps photosynthisis function creating sugar. :)

If spindle microtubules fail to bind some kinetochores in meiosis, then most likely: _____________

a. excessive cell divisions will occur resulting an increase in the chromosome number known as polyploidy.
b. the resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.
c. new microtubules with more effective binding capabilities to kinetochores will be synthesized to compensate for the defect.
d. the defect will be bypassed in order to ensure normal chromosome distribution in the new cells.

Answers

D. If anything fails in the body another part of that system will usually compensate to help distribute the cells without having any abnormalities in the chromosome distribution
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