Answers
Answer:
The correct answers are:
1 a. X^RX^r - red eye color female
b. X^RX^R - red eye color female
c. X^RY - red eye color male
d. X^rY - white eye color male
e. X^rX^r - white eye color female
(2nd part can also be answered by above)
Explanation:
It is given that the eye color is a sex-linked character where Red eye color is dominant over white eye color in fruit flies. Sex-linked characters are the character that is a similar inheritance pattern except in the case of the male as there is a Y chromosome that does not carry the gene for the eye color trait so the trait will depend on the allele present on a single X chromosome in males.
On the basis of this, the sex and color of eyes will be:
a. X^RX^r - red eye color female - Dominant character will mask the recessive white color and two copies of X which means female.
b. X^RX^R - red eye color female - both copies are dominant so red-eye color will be expressed and two copies of the X chromosome that means female
c. X^RY - red eye color male - One X and one Y chromosome that means male and only dominant allele present so red eye color.
d. X^rY - white eye color male - Only allele that is present is recessive with one Y chromosome that means male with white eye color.
e. X^rX^r - white eye color female - two X chromosomes with recessive allele which means white eye color female.
Dominance refers to when an allele masks the effect of another allele.
Red is dominant to white
The sexes and eye colors of flies with the following genotypes:
XR Xr - Female with red eyes.
XR XR - Female with red eye
XR Y - Male with red eye
Xr Y - Male with white eye
Xr Xr - Female with white eye
White eyed male - Xr Y
white eyed female - Xr Xr
Red eyed female (heterozygous) - XR Xr
Red eyed male - XR Y
White eyed female XrXr and red eyed male XRY
Xr Xr
XR XRXr XRXr
Y XrY XrY
The cross shows 50% red eyed female and 50% white eyed male.
Learn more about dominance: https://brainly.com/question/859397
Related Questions
easy 5th grade science please look at photo and answer!! giving brainliest
Answers
Answer:
What happens after water particles returns to the ocean is that it'll evaporate over the island, and precipitation happens :3
Explanation:
:3
Earthworms help farmers. Many farmers add them to their farmland because they help form rich soil to grow crops in. Explain what type of organisms earthworms are and describe how earthworms help with the formation of soil.
Answers
Answer:
Earthworms are Invertebrates and or soil Invertebrates
Explanation:
Remedial measures may be taken to promote beneficial organisms, thereby inhibiting the growth of destructive soil organisms...Can do so, because these soil invertebrates live their whole lives(most do) in the soil, adapted to, helping, and benefiting from the environment. Allowing them to act as . defenders for the soil.
The active site of an enzyme is damaged, leaving it nonfunctional.
How would this change to the enzyme's function be best described using the graph above?
Choose 1 answer.
The reaction originally proceeded through the path of Y, but now proceeds through the path of
Х.
B
The reaction would continue to proceed through the path of Y.
The reaction originally proceeded through the path of X, but now proceeds through the path
of Y
The reaction would continue to proceed through the path of x
Answers
Answer: The reaction originally proceeded through the path of y but now proceeds through the path of X is the answer
Explanation:
Since the enzyme works based on a lock and key model, the reaction will continue through path X (the path of the uncatalyzed reaction).
An enzyme is a biological catalysts that promotes many biochemical reactions in the body. Enzymes are specific. Only a given enzyme can catalyze a particular reaction.
Owing to the fact that enzymes function based on a lock and key model, When active site of an enzyme is damaged, it can no longer fit into its substrate hence, the reaction will continue through path X.
Learn more: https://brainly.com/question/6284546
The heron has long legs so that it can walk in the shallow water and catch fish.what is this type of adaptation called?
Answers
Answer:
Aquatic Adaptation
An Objective lens has three times the magnification of the eyepiece. If the total magnification is 160X. What will be the magnification of both the Objective lens and that of the eyepiece. (show your work)
Answers
Answer:
53.3
Explanation:
If the objective lens is 3 times the magnification
and the magnification lens is 160X
160÷3=53.33 recurring, rounded down to be
53.3
are fossils derived from a common ancestor ?
Answers
Answer:
I think the answer is yes or true because I know there are fossils of our ancestors, which was found
One method for predicting the average temperature (in ºC) at which a short DNA molecule binds with its complement is to calculate a melting temperature (Tm) using the following formula. Tm = 4 (G + C) + 2 (A + T) Using the formula, CALCULATE the predicted Tm for the short single-stranded DNA molecule shown below? 5’-ATGCGCGACGCGATTTGAC-3’
Answers
In the crime region, the investigators search for pieces of evidence that reveal the truth and find the criminal. They look for fallen hairs, eyelashes,
saliva or drops of blood. Justify why any biological liquid or structure of the body will indicate the criminal.
a
All the body cells of the same individual have the same blood group.
b.
All the body cells of the same individual have same receptors on their surface.
Ο Ο Ο Ο
C.
All the body cells are controlled by checkpoints.
d.
All the body cells arise from mitotic divisions of the same fertilized egg.
Answers
Answer: d. All the body cells arise from mitotic divisions of the same fertilized egg.
Explanation:
After conception occurs and an egg is fertilized, mitosis takes place as the egg begins to divide into other cells. This is how all the cells in the body are eventually formed regardless of how specialized their roles are.
As a result, every cell in the human body shares the same genes so any biological liquid or structure of the body would indicate the criminal because they would share the same gene as the rest of the cells in the criminal.
the permeability of the plasma membrane is
Answers
Answer:
Permeability of plasma membrane is the rate of passive diffusion molecules across the biomembrane.
which of the following is the first principle of cell theory?
Answers
how does diffusion impact the toxicity of an environment?
Answers
Answer:
A chemical's physical state and the route of exposure influence toxicity. ... Inhalation exposure also allows some rapid entry into the systemic circulation, causing toxic effects distant from the entry route.
Explanation:
A tissue is composed of a group of
Answers
Answer:
Explanation:
Cells
8. X= 36 x 12 of 18
9. X = (25 x 3) = 15
10. X = 12 x 14 of 16
Answers
Explanation:
8: X. =. 36x12x18=7776
9:. X. =. 25x3=15
X. =. 75=15
X. =. 5
10:. X. =. 12x14x16=2688
3.2 Exploin in detail 5 socio-economic factors
that influence your study
choices and your future career
Answers
Answer:
There are various social economic factors that affect a personal choice of higher education course and future career. Some of these factors include
Gender and equity Personal preferences The economic status of the student and the family Employment opportunities for the course being studied Religion and beliefs.Al these factors and many more are said to affect the higher education course that a student takes and the future career of this student
Please mark as brainliest
Have a great day, be safe and healthy
Thank u
XD
name the type of body symmetry
Answers
Answer:
If you want to know the types, here they are: radial symmetry, bilateral symmetry, and asymmetry.
Explanation:
two example of epidemic diseases
Answers
Answer:
1) Chikungunya
2) Cholera
Explanation:
Answer:
1. Whooping cough
2. Smallpox
Explanation:
What is ment by adaptation?
Answers
the process of change by which an organism or species becomes better suited to its environment.
Answer:
Adaptation means a physical feature or behaviour that suits plants and animals to their environment.
A marine biologist measured the amount of heat radiated from an aquarium over the course of an experiment. His measurements are shown in the graph below.
Graph shows heat, measured in Joules, radiated from an aquarium over time, measured in seconds. At 0 seconds, the energy, in the form of heat, is 1.2 Joules. At 5 seconds, the energy is 1.6 Joules. At 10 seconds, the energy is 1.3 Joules. Finally at 15 seconds, the energy is 1.5 Joules.
Based on this data, he concludes that the aquarium cannot be considered a closed system for this experiment. Explain why this conclusion is invalid.
A closed system exchanges both matter and energy with its surroundings, and the scientist only measured the exchange of heat.
A closed system can exchange energy but not matter with its surroundings, and the scientist did not measure the movement of matter.
A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.
A closed system exchanges all of its matter with its surroundings, and the scientist did not measure the movement of matter.
Answers
Answer:
The correct answer is - A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.
Explanation:
The amount of heat radiated is measured and analyzed by the marine biologist in this given experiment from an aquarium and on the basis of data the diagram is represented that states that the radiated energy is not constant over time and there are fluctuations.
It can not be considered as a closed system as energy is still exchange with the surrounding system, however, mass is not exchange but still, it cannot be called a closed system.
Why are enzymes important for our bodies
Answers
Answer:
Because enzymes have many functions as chemical catalysts in numerous chemical reactions (for example in metabolism). By lowering the activation energy, they make it much easier to carry out reactions. They are also indispensable for signal transduction and cell regulation, often via kinases and phosphatases. They also generate movement, with myosin hydrolyzing ATP to generate muscle contraction, and also transport cargo around the cell as part of the cytoskeleton. Other ATPases in the cell membrane are ion pumps involved in active transport.
Characteristics of codon
Answers
The start codon AUG marks the beginning of a protein.
The stop codon marks the end of a protein.
HELP ASAP ILL GIVE U BRAINLY AND POINTS! Need help with 19!
Answers
Answer:
9.56, if u need the calculations let me know
Explanation:
Match the following prokaryotic classes with differing modes of metabolism with the appropriate descriptions - obligate anaerobes - Facultative anaerobes - Aerotolerant anaerobes - Obligate aerobes A. can shift their metabolism between anaerobic and aerobic modes B. Oxygen-sensitive, can only use anaerobic mode of nutrition C. unable to survive for extended periods in the absence of oxygen. They require oxygen for cellular respiration. D. cannot conduct cellular respiration but are not damaged by oxygen when it is present
Answers
Answer:
- Obligate anaerobes: B
- Facultative anaerobes: A
- Aerotolerant anaerobes: D
- Obligate aerobes: C
Explanation:
Obligate anaerobes are microorganisms that dead in normal atmospheric oxygen (O2) levels (around 21%). Some examples of obligate anaerobes are procaryotic bacteria such as Clostridium, Fusobacterium, Actinomyces and Peptostreptococcus. Facultative anaerobes are organisms that can grow without O2 and produce energy by fermentation, but they can produce more energy (ATP) by the aerobic respiration mechanism. Facultative anaerobes include both prokaryotic (e.g., Escherichia coli) and eukaryotic (e.g., Saccharomyces cerevisiae) organisms. Aerotolerant anaerobes are microorganisms that can live in O2 atmospheric conditions, but they use fermentation as cellular mechanism to produce energy (ATP). Some examples of aerotolerant anaerobes are lactobacilli and streptococci (bacteria) found in the oral microbiota. Finally, obligate aerobes are organisms that can grow only in normal O2 conditions and metabolize foods through cellular respiration, a process more energetically efficient than fermentation. An example of an obligate aerobe is the human species.
Which has a function of the spinal cord
Answers
Nervous system has two parts:
Central nervous system
Peripheral nervous system.
Central nervous system includes brain. Peripheral nervous system includes spinal cord.
Spinal cord receives nerve impulses from body and transport it to the brain.
It also receives orders in form of nerve impulses which are transported to receptors for response.
WInch ferm refer to the existence of a wide range of different types of organisms in a given place at he same time?
Answers
Answer:Short Answer
6. F (page 12) 7. F (page 11) 8. F (page 7) 9. T (page 18)
10. T (page 14)
1. Companies common to most fire departments include (Students should include five of the following): (1) Engine company: An engine company is responsible for securing a water source, deploying handlines, conducting search-and-rescue operations, and putting water on the fire. (2) Truck company: A truck company specializes in forcible entry, ventilation, roof operations, search-and-rescue operations above the fire, and deployment of ground ladders. They are also called ladder companies. (3) Rescue company: A rescue company usually is responsible for rescuing victims from fires, confined spaces, trenches, and high-angle situations. (4) Brush company: A brush company is dispatched to woodland and brush fires that larger engines cannot reach. (5) Hazardous materials company: A hazardous materials company responds to and controls scenes involving spilled or leaking hazardous materials. (6) Emergency Medical Services (EMS) company: An EMS company responds to and assists in transporting medical and trauma patients to medical facilities for further treatment. EMS personnel often have medications, defibrillators, and other equipment that can stabilize a critical patient during transport.
Explanation:
The sun create what kind of light
1. White light
2. Bright light
3. Colored light
4. Empty light
Only 1 answer someone help!!
Answers
Answer: Colored light
Explanation: Sunlight is emitted from the Sun's photosphere. A fraction of the light that travels from the Sun reaches Earth. It travels as light in a range of wavelengths, including visible light, ultraviolet, and infrared radiation. Visible light is all the light we can see with our eyes.
Question 3 of 10
In an ecosystem in Africa, lions are predators for zebras. The lion population
increases, and they eat more zebras. This decreases the zebra population,
What happens next?
A. The death rate of lions increases.
B. The lion population increases.
C. The birthrate of lions increases.
D. The birthrate of zebras increases.
Answers
Answer:
a
Explanation:
the lions would no longer have enough food to feed on
For traits controlled by a single genetic locus, dominant phenotypes are expected to occur at a frequency of approximately 75%, in a randomly mating population.
true or false and why
Answers
Answer:
True.
Explanation:
The dominant phenotypes are expected to occur at a frequency of approximately 75%, in a population because of its dominant nature which allows them to appear in the physical structure of the organisms. In most of the offspring, the dominant allele shows their characteristics in the population whereas the recessive allele are hidden in that organisms and we can't see them in the physical appearance of the organisms.
Mitosis and meiosis are cell division mechanisms that lead to different numbers of daughter cells. Which explanation best describes how these two processes maintain continuity?
Answers
meiosis :cell division that produces reproductive cells in sexually reproducing organisms
mitosis:cell division in which nucleus divides into nuclei containing the same number of chromosomes
meiosis nucleus divides twice and produces 4 daughter cells which are not genetically the same
mitosis necleus divides ones and produces two daughter cells which are genetically the same
TRUE OR FALSE: DINOFLAGELLATES IS A GROUP OF BACTERIA THAT USED TO BE CLASSIFIED AS ALGAE
Answers
Answer: True
Explanation:
Rewrite the following incorrect statement with the correct answer:
Endogenic forces work on the surface of the earth.
Answers
Explanation:
Endogenic forces work towards the middle of the earth...creating pressure causing cracks, pits..