Zebrafish (Danio rerio) is an important model organism in the field of genetics. One of the first mutant genes to be studied in this species was golden. The mutant allele was discovered in a pigmentation mutant purchased from a pet store, which changed the color of the fish from the wild-type silver-white coloration to a pale golden color. Calculate the percent likelihood of golden offspring from a cross between a heterozygous wild-type male fish to a golden female fish a 0% b 50% c 25% d 100%

Answers

Answer 1

Answer:

b

Explanation:

Let the wild type trait, the silver-white, be represented by A allele and the mutant trait, the golden color, be represented by a allele.

Heterozygous wild-type male fish would be Aa

Golden female fish would be aa

     Aa    x    aa

  Aa   Aa    aa    aa

2/4 Aa = silver-white

2/4 aa = golden color

Hence, the percent likelihood of golden offspring is 2/4 or 50%.

The correct option is b.


Related Questions

Describe nondisjunction and the effect it can have on a human.

Answers

Answer:

Nondisjunction forms abnormal number of chromosomes in the gametes. Nondisjunction causes human disorders in autosomes from chromosomes 1-22. The examples are Down syndrome or trisomy 21, an extra copy of chromosome 21. People with Down syndrome have 47 chromosome instead.

Answer: This is the sample response Edge 2021

It is the failure of homologous chromosomes to separate properly during gamete formation (meiosis).

Klinefelter syndrome can occur and is seen as males with gametes XXY instead of XY.

It affects sex organs, including creating smaller testes and causing sterility.

Males can be taller in stature with normal intelligence.

Explanation:

Select all the types of transport that DO require ATP
Active Transport
Passive Transport
Diffusion
Endocytosis
Exocytosis
Osmosis
Facilitated Diffusion

Answers

All types of Active transport require ATP:
-Active transport
-Endocytosis
-Exocytosis

Answer:

-Active transport

-Endocytosis

-Exocytosis

Explanation:

Hope this will help

Select the correct answer.
Pulmonary edema is a condition that causes coughing and abnormal lung sounds, in pulmonary edema, the airways of an animal are
blocked by fluid, which causes difficulty in breathing, which body system does this disease affect?
A
musculoskeletal
В.
excretory
OC
respiratory
OD
circulatory

Answers

It affects the musculoskeletal

Answer:

The correct answer is Respiratory

I took the test :)

Which image shows the place where the pressure and density of the atmosphere would be lowest? Waves at a beach with palm trees. Mountains covered with snow. A desert.
This is earth science not biology there wasn't a choice for it, Thank You!

Answers

Answer:

b

Explanation:

Answer:

b

Explanation:

they deleted my answer to day be cus he or her was

MAF

WILL GIVE BRAINLIEST IF RIGHT

Look at the picture below. What type of weathering do you think caused this rock formation?

Answers

Answer:

Like a gate or a sleeping man on seeing from opposite side.

I dress each label to the correct location on the image and identify the parts of the water cycle​

Answers

Answer:

The bottom one is "evaporation" and the one to the right is "precipitation".

Explanation:

Evaporation is when the sun heats up a body of water and turns the surface water particles into water vapor. The water vapor then goes into the air and turns into clouds. Precipitation is basically rain.

Answer:

Explanation:

Answer:

The bottom one is "evaporation" and the one to the right is "precipitation".

Explanation:

Radioactive strontium (Sr) is harmful to humans. Strontium, when ingested by cows, can be introduced to milk through the process of replacing an element of the same group or family that has similar properties. Using the Periodic
Table, which element do you think can be easily replaced by strontium in milk?

Answers

Answer: K

Explanation:

Radioactive strontium (Sr) is harmful to humans. Strontium, when ingested by cows, can be introduced to milk through the process of replacing an element of the same group or family that has similar properties. potassium (k) element  can be easily replaced by strontium in milk

What is radioactive material  ?

The radioactive material is a liquid, solid or gaseous which can be defined as the element containing  radionuclides in concentrations .

These elements are more than the concentrations established as exempt by government authorities where Radioactivity is the emission of ionizing particles released by the disintegration of atomic nuclei.

This type of radioactive wastes are released in various industries through normal operations, flowing from facilities and environmental activities.

To learn more about radioactivity, refer to the link:

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which event occurs during interphase​

Answers

Answer:

The Interphase carries out metabolic processes.

Answer:

A Cell Grows to its full size

The Cell copies its DNA

Explanation:

The topmost solid part of the Earth is called the​

Answers

Answer:

Lithosphere is the topmost solid part of the Earth

PLZ MARK AS BRAINLIES THANK AND FIVE STAR:)

Why do tumors form in cancerous cells

Answers

Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body's normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor.

What evidence is there that all living things are made of cells? ​

Answers

Microscopes & research.

Anton von Leeuwenhoek develops a more powerful microscope that allows him to see living cells like bacteria. Matthias Schleiden and Theodor Schwann conclude that all living organisms are made of cells, and that cells can be produced from other cells.

A cell can be described as the structural and functional unit of life. It can also be described as the building material of all living organisms.

Without the cell, most living organisms will not be able to function. An organelle will not be able to survive that long within its life span without the presence of cells. It will just withe and die off.

Lots of scientists have proved in various ways the existence of cells, this is because they have been able to create microscopes that can see these tiny cells. This is evidence that proves the existence of cells.

Please see the link below for more information;

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What property allows carbon to form a wide variety of molecules?
a. It is the fourth most abundant element in the universe.
O b. It has an average mass of 12 AMU.
O c. It's electron configuration.
.
O d. It's number of protons.

Answers

Answer:

O c. It's electron configuration.

Explanation:

Electronic configuration is the property that allows carbon to form a wide variety of molecules. It is fourth most abundant element in the universe after hydrogen, helium and oxygen. It has four electrons in its outermost shell due to which carbon forms four covalent bonds with other elements such as hydrogen, oxygen, and nitrogen. Carbon also has the ability to making rings.

If humans change the function or equilibrium of one of Earth's systems, this will not change
the function or equilibrium of all of Earth's systems.
True
False

Answers

Answer:

False.

Explanation:

All of the things found in the Earth system can be categorized into four (4) main categories and these includes;

I. Land: this subsystem forms a sphere which is generally referred to as litosphere.

II. Water: this subsystem forms a sphere which is generally referred to as hydrosphere. It comprises of landforms such as mountains, valleys, plateaus, ridge, rocks, etc.

III. Air: this subsystem forms a sphere which is generally referred to as atmosphere. This sphere comprises of gases such as oxygen, carbon dioxide, nitrogen, etc.

IV. Living organisms: this subsystem forms a sphere which is generally referred to as biosphere. It comprises of all living things such as humans, animals and plants.

If humans change the function or equilibrium of one of Earth's systems, this will significantly change the function or equilibrium of all of Earth's systems. Consequently, these changes result in environmental phenomenon such as volcanoes, earthquakes, tornadoes, wildfire, etc.

Explain the interaction between proteins and nucleic acids.

Answers

Answer:

Image result for Explain the interaction between proteins and nucleic acids.

The binding of protein to DNA controls the structure of genomic DNA (chromatin), RNA transcription, and DNA repair mechanisms. The following example illustrates how Invitrogen Dynabeads magnetic beads may be used to recover proteins that bind to nucleic acids.

Explanation:

can we call cell membrane cell wall?​

Answers

Answer:

No, because a cell wall is only present in plant cells and is located outside the cell to give it structure.


no,The cell wall is present only in plants and the cell membrane is present in every living organism including plants.

WILL MARK AS BRAINLIEST!!!!!

Describe the levels of organization in the body.

Thank you! I will also try to answer some questions if someone answers :)

Answers

Answer: The six levels of organization in the body are: chemical, cellular, tissue, organ, organ system, organism.

Explanation: Hope this helps!

Answer is there are how many organs and that we need all of them besides 1

can we grow taller after puberty? like at 16?​

Answers

Yep, however if you’re male you will see more of a difference but female to tend to grow

Answer:

yes u can grow it depends on your secretion and what sex you have . female starts growing earlier but male starts late


How can understanding renewable and
nonrenewable resources a affect me
as a high school student or teenager?

Answers

Answer:

understanding witch is witch can help you save money and also help save the environment. Renewable energy sources such as wind turbines can create energy from the wind and use it to power houses and buildings. Nonrenewable energy sources are basically a one time use like ethanol or gas we use for cars, once they are used up they are gone or unusable.

Can our cells undergo photosynthesis? Why or why not?

Answers

Answer:

No, Human bodies cannot undergo photosynthesis.

Explanation:

Our body's demand for glucose is higher than photosynthesis can accommodate. We also don't have chloroplasts to be able to carry out photosynthesis.

Photosynthesis occurs in cell organelles called chloroplasts, which are not found in human cells. Even if we could photosynthesize, we don’t have enough surface area on our skin to generate the amount of energy (ATP) that humans need to survive.

The monarch butterfly stores a poisonous chemical from the milkweed plant in its body. The chemical makes the other animals who might eat the monarch butterfly sick. This is an example of:

a) mutualism
b) commensalism
c) parasitism
d) competition

Thank you for your help (:

Answers

c.) parasitism should be correct

The monarch butterfly and the local milkweed plants live in harmony. The nectar from the flowers is enjoyed by the monarch butterflies, who also aid in plant pollination.  Thus, option B is correct.

What is the role of commensalism in monarch butterfly?

The intestine of the monarch caterpillars is invaded by a parasite. The adult butterfly starts to ooze fluid from its body and dies if it emerges from the pupal stage with a serious parasite infestation.

The milkweed grows successfully as a result of the effective pollination, providing more nurseries for the vital “fourth generation” of monarchs.

The butterflies do not fly as well or live as long as those who are uninfected, even if they do survive, as in the case of a mild illness.

Therefore, commensalism is an instance of a monarch butterfly stores a poisonous chemical from the milkweed plant in its body.

Learn more about monarch butterfly here:

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This is a single strand of DNA. Write out the corresponding strand we would find
on the other side.

T-A-C-A-T-G-C-A-A-G-T-C-G-T-C-C-G-T-T-T-C-C-A-G

Answers

Answer:

T-A-C-A-T-G-C-A-A-G-T-C-G-T-C-C-G-T-T-T-C-C-A-G

A-T-G-T-A-C-G-T-T-C-A-G-C-A-G-G-C-A-A-A-G-G-T-C

Explanation:

Adenine-Thymine (APPLES IN THE TREE)

Guanine-Cytosine (CAR IN THE GARAGE)

Which situation would encourage competition?
Which situation would not encourage competition?
A wet, rainy season results in flooded caverns foxes normally use as shelters.

A long, wet season results in additional earthworms in a robin habitat.

A long dry season results in a decrease in pond algae in a fish habitat.

The amount of vegetation decreases due to a drought in a rabbit habitat.

Answers

Answer:

D

Explanation:

Competition occurs between organisms living in the same habitat, rely on the same resources for survival and the resource is in short supply.

So, from the given options competition will occur in rabbit habitat that have short supply of  vegetation due to due to a drought. Now rabbit will compete with each other for limited food supply for their survival.

Hence, the correct answer is  "D."

Answer:

A long, wet season results in additional earthworms in a robin habitat.

Explanation:

I took the test

The air bubbles and spongy texture of bread are due to which process?
a. Lactic acid fermentation
b. Glycolysis
c. Alcoholic fermentation
d. The Krebs Cycle

Answers

Answer:alcoholic fermentation

Explanation:

The air bubbles and spongy texture of bread are a result of the process of baking of bread through alcoholic fermentation. Thus, the correct option is C.

What is Fermentation?

During fermentation, carbon dioxide is produced in cell and it is trapped as tiny pockets of air within the dough. The production of carbon dioxide causes the dough to rise.

During the baking of bread, carbon dioxide expands and causes the bread to rise further. In this process, alcohol is produced during fermentation which evaporates during the baking process of bread. In this process, yeast eats the sugar and releases carbon dioxide which causes air bubbles.

Therefore, the correct option is C.

Learn more about Fermentation here:

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A farmer lost most of his crops last year because of insects. This year he decided to use pesticide to kill the insects. However, some of the insects survived the pesticide and have reproduced. The new population of insects is not affected by the pesticide. After several generations, more insects are born that survive the pesticide. What process explains the change in insect population?

Question 2 options:

extinction


artificial selection


genetic engineering


natural selection

Answers

I believe it is , this is because natural selection is when it happens naturally over time but when a human intervenes it becomes artificial selection in this case it was the farmer using pesticides

State atleast 3 recommendations for reducing pollution

Answers

Answer:

- use of less plastic

-reducing the amount of cans and un-reuseable items

- less gasoline use

Explanation:

- Carpool/ Use public transportation to reduce gas usage
- Bring reusable bags to grocery stores so that you don't use the plastic ones
- Make sure to do the 3 R's reduce reuse and recycle

Biology Un
Task: Biomes
Activity 4 of 4
Explain why you chose the graph you did to answer question
10C. Describe at least two reasons.
13
24
22
20
4
14
-12
TE
14
10
20
16
JFHAHJU AS OND
JFRAUJASOND
D
TEMP
TE
CH
AN
CH
PAIN
36
34
32
14
33
90
30
20
16
24
20
16
12
24
22
20
20
16
16
IN

Can somebody pleaseeeeee helpppp hurry

Answers

Answer:

22

Explanation:

As in mitosis, in meiosis the chromosomes move toward opposite poles of a
cell in

A. telophase
B. metaphase
C. prophase
D. anaphase


Think is A but not sure

Answers

Answer:

telophase

Explanation:

I think its A because thast when it goes to the oppsite end ....I think

telophase i think so

Sickle cell hemoglobin DNA
CACGTGGAСTGAGGA CACCTC
Sickle cell hemoglobin mRNA
Sickle cell hemoglobin

Answers

answer:
hiiii luv!!!!
do you have a specific question?

Which type of reaction is represented by the following equation?
 
2KClO 3 → 2KCl + 3O 2

single displacement

decomposition

synthesis

double displacement

Answers

Answer: Decomposition

Explanation: cause I know

Answer: decomposition

Explanation: process of elimination

What is an enzyme?.....

Answers

a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
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