Answer:
Explanation:
Available data:
There are two diallelic genes that code for chickens combDominant alleles R and P express rose comb and pea comb, respectivelyWhen they are together in a genotype, they express walnut combs, R-P-Recessive alleles are r and pGenotypes with only recessive alleles express single combs, rrppSo, genotypes and phenotypes would be like
Walnut combs, RRPP, RrPP, RRPp, RrPp (One dominant allele of each gene)Rose comb, RRpp or Rrpp (only R gene with dominant allele)Pea comb, rrPP or rrPp (Only P gene with dominant allele)Single combs, rrpp (no dominant alleles at all)a) Cross: RR Pp × rr Pp
Phenotypes: Walnut x Pea
Gametes) RP, Rp, RP, Rp
rP, rp, rP, rp
Punnett square) RP RP Rp Rp
rP RrPP RrPP RrPp RrPp
rP RrPP RrPP RrPp RrPp
rp RrPp RrPp Rrpp Rrpp
rp RrPp RrPp Rrpp Rrpp
F1) 12/16 = 3/4 R-P-, Walnut-combed animals
4/16 = 1/4 Rrpp, Rose-combed animals
b. Cross: rr PP × Rr Pp
Phenotype: Pea x Walnut
Gametes: rP, rP, rP, rP
RP, Rp, rP, rp
Punnett square) RP rP Rp rp
rP RrPP rrPP RrPp rrPp
rP RrPP rrPP RrPp rrPp
rP RrPP rrPP RrPp rrPp
rP RrPP rrPP RrPp rrPp
F1) 4/16 = 1/4 = 25% RrPP, Walnut-combed animals
4/16 = 1/4 = 25% rrPP, Pea-combed animals
4/16 = 1/4 = 25% RrPp, Walnut-combed animals
4/16 = 1/4 = 25% rrPp, Pea-combed animals
1/2 = 50% Walnut-combed animals, R-P-
1/2 = 50% Pea-combed animals, rrP-
c. Cross: Rr Pp × Rr pp
Phenotype: Walnut x Rose
Gametes: RP, Rp, rP, rp
Rp, rp, Rp, rp
Punnett square) RP Rp rP rp
Rp RRPp RRpp RrPp Rrpp
Rp RRPp RRpp RrPp Rrpp
rp RrPp Rrpp rrPp rrpp
rp RrPp Rrpp rrPp rrpp
F1) 2/16 = 1/8 RRPp, walnut
2/16 = 1/8 RRpp, Rose
4/16 = 2/8 RrPp, Walnut
4/16 = 2/8 Rrpp, Rose
2/16 = 1/8 rrPp, Pea
2/16 = 1/8 rrpp, single
6/16 = 3/8 walnut, R-P-
6/16 = 3/8 rose, R-pp
2/16 = 1/8 Pea, rrP-
2/16 = 1/8 Single, rrpp
d. Cross: Rr pp × rr pp
Phenotype: Rose x Single
Gametes) Rp, rp, Rp, rp
rp, rp, rp, rp
Punnett square) Rp Rp rp rp
rp Rrpp Rrpp rrpp rrpp
rp Rrpp Rrpp rrpp rrpp
rp Rrpp Rrpp rrpp rrpp
rp Rrpp Rrpp rrpp rrpp
F1) 8/16 = 1/2 = 50% Rrpp, Rose-combed animals
8/16 = 1/2 = 50% rrpp, single-combed animals
Question 17 (1 point)
(06.07) Which of the following best describes the male and female reproductive structures of an angiosperm? (4 points)
a
Flowers with male stamens that hold pollen and female pistil that holds the ovule.
b
Male and female cones, and the pollen from a male cone fertilizes the egg in a female cone.
c
Sporangia release spores that grow into male plants with pollen and female plants with ovules.
Answer:
C Sporangia releases spores that grow into male plants with pollen and female plants with ovules
levels of biological organization from simplest to most complex?
Answer:organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:
Answer:
the biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
Explanation:the biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
40 POINTS ! compare and contrast the six nutrients of life (water, protein, carbohydrates, fats, vitamins, and minerals). with the names of the six nutrients along the top and the following headings along the side: role in nutrition, degree of difficulty of digestion, cost (high or low and why), chemical makeup (for example, carbon, oxygen, and hydrogen), main dietary sources, and how much is needed daily by a dairy cow, sheep, goat, and pig.
The World Health Organization (WHO) note that essential nutrients are crucial in supporting a person’s reproduction, good health, and growth. The WHO divide these essential nutrients into two categories: micronutrients and macronutrients.
Micronutrients are nutrients that a person needs in small doses. Micronutrients consist of vitamins and minerals. Although the body only needs small amounts of them, a deficiency can cause ill health.
Macronutrients are nutrients that a person needs in larger amounts. Macronutrients include water, protein, carbohydrates, and fats.
Keep reading for more information about where to find these nutrients, and why a person needs them.
The six essential nutrients are vitamins, minerals, protein, fats, water, and carbohydrate
20. Which of the following bacteria is considered coliform?
A. E. coli
B. Proteus
C. Salmonella
D. Shigella
21. The Enterotube is used to distinguish between:
A. Staphylococcus and Streptococcus
B. Proteus and Salmonella
C. Bacteria and Fungi
D. Antibiotic-resistant bacteria
22. What type of specimen is used to inoculate an Enterotube?
A. Throat swab
B. Stool
C. Urine
D. Blood
E. Sputum
23. Which bacteria gives positive test for urease when growing on urea broth?
A. Proteus
B. Enterobacter
C. Salmonella
D. Shigella
24. Which bacteria gives positive test for decarboxylase when growing on lysine broth?
A. Proteus
B. Enterobacter
C. Salmonella
D. Shigella
25. The Lethal Effect of UV light is specifically caused by
A. UV –A
B. UV-B
C. UV-C
D. Infrared
Answer:
20. D
21. A
22. c
23. C
24. not sure
25. not D
Explanation:
im not sure with all of them
What are inputs and outputs of photosynthesis?
Answer:
In photosynthesis, water, carbon dioxide, and energy in the form of sunlight are inputs, and the outputs are glucose and oxygen.
Why are Sunlight and nutrient levels asexual
Answer:Sexual reproduction allows them to produce fit offspring that can survive under stressed environmental condition
Explanation:Reproducing sexually and asexually allows fungi to adjust as per the environmental condition.
When the conditions are favorable, they reproduce asexually and increase their number but when the condition are not favorable and environmental selective pressure occur then they undergo genetic variation through sexual reproduction to produce a stable and fit offspring that could survive under stressed condition with limited resources.
Asexual reproduction Since there are plenty of resources, the plant will want to reproduce quickly and colonize the area
In a phospholipid bilayer, the polar heads point——water and the nonpolar tails point—- water
Answer:
The water loving heads (hydrophilic) would point towards water whereas the water hating tails (hydrophobic) would point away from the water
Explanation:
What kind of solution (hypertonic, hypotonic, or isotonic) is distilled water compared to the cell cytoplasm?
Answer:
i dont remember honestly
Explanation:
Help
(1)THE BEGGAR: (outside) Bread. Bread. Give me some bread.
(2)THE KING: Ah! He is crying out again. His voice seems to me louder than it was before.
(3) THE SERVANT: Yes! He seems quite hungry.
(4) THE KING: That is not my business.
(5)THE SERVANT: Should I not perhaps fling him a crust from the window?
(6)THE KING: No! To feed a beggar is always foolish. Every crumb that is given to a beggar is an evil seed from which springs another fellow like him.
The playwright includes the metaphor in paragraph 6 to -
A. convey the king’s reason for not giving away food to beggars B. highlight the king’s change of heart C. suggest that the king only cares for himself D. compare the bread requested to seeds from something evil
when a newly formed cell enters into interphase and begins conducting metabolic functions it's is. •G0 phase •G1phase •G2 phase •S phase
Answer:
Gap 1 (G1)
- This is the phase in which the cell undergoes normal growth and cell function synthesizing high amounts of proteins.
- The cell increases in size and volume as more cell organelles are produced.
- The cell can only move to the next phase, S after synthesizing enough ribosomes.
- As the phase is almost done, the mitochondria of the cell fuse into a network of mitochondria for effective energy production for cell processes.
- If the cell can not divide again, it enters the G0.
Plant roots are more easily able to absorb ammonium that has been produced from
Answer:
the nector
Explanation:
what is the complementary strand of ACTAACGGTAGCTAGC
a.
Alternative energy sources like solar and wind power
are always available
b. are only replenished with human intervention
are renewable
d. are more versatile than fossil fuels
C.
Answer:
are only replenished with human intervention are renewable
Renewable alternative energy sources like solar and wind power only need human interaction to refill themselves. As a result, choice B is the right one.
Alternative energy sources are ways of producing energy that are more environmentally responsible, renewable, and sustainable than conventional fossil fuels like coal, oil, and natural gas. The significance of creating and utilising alternative energy sources has increased as concerns over the depletion of non-renewable resources and the effects of climate change become more and more apparent. Numerous alternative energy sources are being investigated and used globally due to technological breakthroughs and rising global awareness.
To know more about alternative energy sources, here:
https://brainly.com/question/28172884
#SPJ6
A dichotomies key for insects is given. To what order does an insect with two pairs of scaly wings belong
Answer:
Explanation:Spruce
what is the symbiotic relationship that exists between the pseudoscorpions and the beetle.
Answer: One of the larger male pseudoscorpions will prevent other males from boarding the beetle, but will happily allow females on, in the hope of mating with them before they reach their destination. This is a symbiotic relationship.
Q. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exist in 60% of the same population, which trait is likely to have arisen earlier ?
Q. What factors could lead to the rise of a new species ?
please help in my assignment work due 15mins.
➜ Trait B is likely to have arisen earlier in a population of an asexually reproducing species.
➜ These are the factors that could lead to the rise of a new species:
Genetic variation.Natural selection.Reproductive isolation.Labrador retrievers are traditionally black, brown, or yellow. The B allele codes for black fur, and the b allele codes for brown fur. The E allele allows the pigment to be deposited in the fur, while the e allele doesn't allow the pigment to be deposited. If one lab has the genotype bbee, and another lab has the genotype BbEe, what is the chance that an offspring will be brown
Answer:
25% of offspring will be brown
Explanation:
4 out of 16 of will be brown
to convert this to a percentage do:
4 ÷ 16 × 100 = 25
Punnett squares are in the image
Brown offspring are circled
Unlike anorexics, bulimics
A) Often restrict calorie intake.
B) Are obsessed with being too thin.
C)
Can do damage to their health.
D) May appear to be normal in weight.
Answer: The answer is D.
Answer:
d is the closest to correct but honestly isn't completely true.
Explanation:
an anorexic can lose control sometimes and end up binging, making their weight loss less drastic or noticeable
If you cross two heterozygous (Yy) pea plants, what proportion of the offspring will be heterozygous?
Answer:
2/4 = 50% of the offsring will be heterozygous
Answer: 50%
Explanation: If You mak a Punnet Square, or just a 2x2 box with a Y and y on both sides, you'd get 1 YY (25%), 2 Yy (50%), and 1 yy (25%) offspring.
pls help on the question below
HEEELP! I will give brainliest and profile thanks to the best answer!
We protect our homes and gardens from pests (insects), you protect your small business with an alarm system, you protect your health by having insurance and eating well and taking appropriate medication --so why would you not protect your ranch in any way possible from predators? Why are some ranchers resistant?
Answer:
because some crops need other animals to grow like with bees and humming bird they are considered predators but they help plants by spreding seeds.
Explanation:
Find the type of mutation
Substitution, Insertion, Deletion?
Did the mutation change the reading frame?
Yes or No?
How did the mutation change the amino acid sequence?
1 amino acid change, Premature stop signal, All the amino acids are chabged after the point mutation?
Answer:
the number of members in A municipal corporation depends upon the _______ city
What causes leaves to change color in the Fall?
Answer:
Chlorophyll Breaks Down
But in the fall, because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.
Malaria, a type of parasite, infects 500 million people each year by infecting the red blood cells of its host. The virus, HIV, that causes AIDS, reports 50,000 newly infected persons. Which statement best differentiates the pathogens, parasites and viruses?
options: Although both rely on other living organisms to survive, viruses are usually beneficial.
Although both rely on other living organisms to survive, parasites feed on the host organism.
Although both are living organisms, viruses break down dead plants and animals that other organisms use.
Although both are living organisms, parasites depend on the cells of living things to reproduce.
Answer:
The second statement clearly differentiates the pathogens best. Parasites feed on living host while viruses depend on the cells of other organisms to survive and reproduce as they cannot function outside a living host.
Although both rely on other living organisms to survive, parasites feed on the host organism. The correct option is B.
What are parasites?A parasite is an organism that lives on or in the host and obtains its food from or at the expense of the host.
Protozoa, helminths, and ectoparasites are the three main types of parasites that can cause disease in humans.
They frequently go unnoticed because they have few symptoms. However, these infections frequently result in serious illnesses such as seizures, blindness, heart failure, and even death.
A parasitic relationship takes place when one lifeform, the parasite, feeds on another organism, the host, causing harm and possibly death.
The parasite lives on or in the host's body. Tapeworms, fleas, as well as barnacles are examples of parasites.
Thus, the correct option is B.
For more details regarding parasite, visit:
https://brainly.com/question/22589174
#SPJ2
14. Which are the most common gases emitted by
volcanoes?
A. hydrogen and helium
B. oxygen and nitrogen
C. water vapor and carbon dioxide
D. chlorine and hydrogen
Answer:
The most common volcanic gases are water vapor and carbon dioxide
Explanation:
help plss
Q: What is the blue crab population trend between 1990 and 2008?
Q: Do you think counting the number of adult female crabs gives a good representation of the population? Why or why not?
Q: Do you think the population counts in 1991 and 1999 are accurate? Why or why not?
Answer:
1) the trend ) it is a negative correlation showing that the population is going down
2) yes as the female crabs give birth and are needed to reproduce. If there are less female crabs the population will go down
Explanation:
which sre characteristics of All living thi things
1.Grow
2. have the capacity to evolve
3.breath
4. respond to stimuli
5. made of cells
Answer:
I think it's choice 5. because all living things are made up of cells.
7. Show that it we cross pure grech pea plants with the heterozygous yellow pea plants
what are the possible phenistkes of the first filial generation by using rennut square
I use crosses the first filial generation on the question number seven (7) what are the
possible ration of their offspring's
9. What are the most commah known neuroplerans nictter are
Explanation:
7. 100% green pea plant
-50%=GG
-50%=Gg
9. Not sure what you mean?
Answer:
Yellow( heterozygous) and green
Explanation:
Osmosis Scenario: Fluid movement into the brain after traumatic brain injury can result in dangerous brain swelling. One treatment that can be used in some of these cases is adding a ______________ (hypertonic or hypotonic) saline. Remember, you are trying to reduce the excessive fluid in the brain.
URGENT
what are the steps of photosynthesis
Explanation:
Step 1-Light Dependent
CO2 and H2O enter the leaf
Step 2- Light Dependent
Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2
Step 3- Light Dependent
The electrons move down to enzymes
Step 4-Light Dependent
Sunlight hits the second pigment molecule allowing the enzymes to convert ADP to ATP and NADP+ gets converted to NADPH
Step 5-Light independent
The ATP and NADPH is used by the calvin cycle as a power source for converting carbon dioxide from the atmosphere into simple sugar glucose.
Step 6-Light independent
The calvin cycle converts 3CO2 molecules from the atmosphere to glucose