Answer:
(0, 0)
Explanation:
You have crossed two Mexican hairless dogs, and the offspring are 1/3 hairy and 2/3 hairless. Given this phenotypic ratio, draw the Punnett square for this cross. Indicate the phenotype for each of the possible offspring. What are the genotypes of the P1 and F1 dogs in this crosList the predicted genotype as well as the phenotype for each of the offspring. Which genotypes are hairless and which are hairy? List the predicted genotype as well as the phenotype for each of the offspring. Which genotypes are hairless and which are hairy? Can you design a genetic cross that would yield a true breeding hairless line-where all offspring is hairless?
Answer:
- Punnett square:
H - h
H - HH (lethal) Hh (hairless)
h - Hh (hairless) hh (hairy)
- Cross: Hh × Hh (all genotypes are Hh)
- Genotypes of the P1 dogs: heterozygous (Hh)
- Genotypes of the F1 dogs: 1/3 hh; 2/3 Hh
- It is not possible to design a cross where all offspring are hairless because the H allele for hairless is lethal in homo-zygous condition (the maximum possible is 2/3 hairless individuals)
Explanation:
As you can see in the Punnett square above, the 1:2 ratio (i.e., 1/3 hairy and 2/3 hairless) is indicative that the hair phenotype is a single (monogenic) trait associated with a lethal allele (H allele). In this case, it should be impossible to design a true-breeding cross because the homo-zygous HH genotype is lethal. Alleles that cause the death of an organism are known as lethal alleles (in this case, the H allele). A recessive lethal allele is only lethal in the homo-zygous individuals, thereby heterozygous individuals survive and they may exhibit a normal/altered (non-lethal) phenotype.
21. Which force is used to separate solid pollutant particles from smoke given out from factories?
onlar
Answer: Electrostatic Force
Explanation:
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A white-tailed deer cannot make its own food and must consume other organisms
for its nutrition. Therefore, the white-tailed is considered a (an)
A)heterotroph.
B)producer.
C)chemotroph.
D)autotroph. .
Answer:
A) Heterotroph
Explanation:
White tailed deers are consumers and do not produce their own food. Most mammals can’t either. Putting in the heterotroph category.
Hope this helps, good luck!
In Drosophila, the genes r and s are linked. Flies of genotype r s/r s and rs /rs are crossed and an F1 obtained. The F1 allele arrangement is called:
Answer:
repulsion (trans)
Explanation:
Repulsion refers to the phenomenon by which each homologous chromosome contains one dominant and one recessive allele from two different linked genes. A trans arrangement occurs when an individual is heterozygous for two linked genes, where the recessive allele for one particular gene is located on the same chromosome as the dominant allele for the other linked gene, thereby dominant and recessive alleles are said to be “in repulsion”. Conversely, a cis arrangement occurs when both dominant alleles are located on one chromosome and both recessive alleles on the other.
Mika wants to improve in math. She makes a goal to go to sleep by 10 p.m. very night for the next month. Which part of SMART goal is not being met?
True or false. The cell's chromatin condenses into chromosomes during prophase.
Answer:
False
Explanation:
Microtubules move chromatids to the poles of the cell during anaphase. Chromosomes reach the poles of the cell during metaphase. The cell's chromatin condenses into chromosomes during prophase. ... false, centrioles migrate to the poles of the cell during prophase.
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Botany is also known as
Answer:
Also known as plant science or phytology, botany is the science of plant life, involving the study of the 400,000+ species of plants that inhabit the land around us. Over time, people learned to identify numerous different kinds of plants, discerned which were useful for food or medicine, and began to cultivate certain species.
This is the Answer for your question :3
This is the Answer for your question :3I hope you are having a great day
critical thinking why are intramuscular injections given in the gluteus medius muscle rather than the gluteus maximus muslce in the buttock region
Answer:
hey so you you still need help with this?
Part C - Follicles Kate thought it was interesting that, after the release of a mature oocyte from the ovary, the follicle it was released from took on a new role. What happens to the follicle
Answer: The follicle assumes a new role which is:
--> the secretion of hormone PROGESTERONE and
--> OESTROGEN
Explanation:
The cycle in the female reproductive system of humans which tak s 28dayd to complete is known as menstrual cycle. At the beginning of the menstrual cycle, several primary oocytes begin to develop. Each oocyte is surrounded by actively dividing granular cells from which it receives nutrients. The whole structure is called a FOLLICLE.
A developing follicle secretes OESTROGEN.
Usually, only one of the developing follicles becomes mature to produce an ovum. As the follicle matures, it becomes filled with fluid and the oocyte is pushed to one side. Ovulation occur when there is release of an ovum from a mature follicle.
The ruptured mature follicle develops into a CORPUS LUTEUM which is a solid yellow body that secretes the hormone PROGESTERONE. This is the hormone that helps to maintain the early stages of pregnancy if fertilization and implantation of embryo occurs. In the absence of pregnancy, the corpus luteum shrivels.
In a female, several main oocytes begin to mature at the start of the menstrual cycle. Each of the oocyte is surrounded by granular cells that are actively dividing and provide it with nourishment forming a ball like mass structure. This structure is known as a follicle.
After the release of a mature oocyte from the ovary, the follicle it was released from takes on a new role and becomes the Corpus luteum.
The ruptured mature follicle after releasing the one main oocyte that develops into the egg develops into a Corpus Luteum. This structure functions in the secretion of the hormone known as progesterone.
If fertilization and embryo implantation occur, this hormone helps to maintain the early stages of pregnancy. The corpus luteum shrinks in the absence of pregnancy.
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Prequipo, resuelvan los siguientes problemas. Pueden
uladora
Encuentren los términos faltantes de las siguientes si
a) 1, 4, 16, ____, 256, 1024, 4096,
b) 4. 28, 196, 1372,
3294172,..
2. ¿Cómo encontraron los términos faltantes en cadas
Answer:
a.) (4×2)² = 8² = 64
b.) =9604, 67228,470596
solo dividi el segundo termino con el tercero y me dio 7 y fui multiplicando el resultado por 7
Compare and contrast the cell cycle with mitosis and the cell cycle with meiosis. Citing 4 similarities and 5 differences.
Answer:
according to the type
Explanation:
they depend on the type
Im currently taking my finals and I really need urgent help
Which of the following is the best example of homeostasis in the human body?
Answer:
Humans' internal body temperature is a great example of homeostasis. When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius). Being warm-blooded creatures, humans can increase or decrease temperature internally to keep it at a desirable level
which behavior is a response to an external stimulus
A. and elephant drinks water to be
B. child gets a fever to fight off the flu
C. a dog vomits during an illness to rid itself of pathogens
D. a turtle Suns itself on a rock on a cool day
Answer:
D. a turtle Suns itself on a rock on a cool day
Explanation:
Jose wants to measure his fingernail, what unit is he going to use?
Answer: you can measure in metric
Explanation:
here is a file
Describe what the plant looks like, including descriptions of any flowers or seeds, so that the farmer or rancher could identify the plant. Discuss the typical habitat for this plant. Where is this plant most likely to be found
The mononuclear phagocyte system is an intricate passageway within and between tissues and organs and is an area full of lymphocytes, which are phagocytic cells used to attack foreign invaders.
a. True
b. False
Answer:
False.
Explanation:
Mononuclear phagocyte comprises of cells defined from the bone marrow progenitors, cells that descend blood monocytes and tissue macrophages. This undergo phagocytosis and they phagocytes foreign Invaders and bacteria. That is they ingest or engulf any foreign substances in the liver cells.
main component of protein
Answer: April Cashin-Garbutt, MA, reviewed it (Cantab) Collagen is a protein composed up of amino acids, which are carbon, oxygen, and hydrogen molecules. Glycine, Proline, Hydroxyproline, and Arginine are among the amino acids found in collagen. Collagen makes up around a third of the proteins in the human body.
Explanation:
knowledge!
Identifying Variables in a Hypothesis
Identify the variables in this hypothesis.
If the pressure of a gas is increased, then the volume will decrease because the particles of the gas will be forced
closer together
The independent variable is
The dependent variable is
Answer:
The independent variable is pressure
The dependent variable is volume.
Explanation:
Answer:
The independent variable is pressure.
The dependent variable is volume.
Explanation:
volume of matter decreases under pressure ... -under pressure, the particles in a gas are forced closer together ... factors affecting gas pressure ... -if pressure in a sealed container is lower than outside, gas will rush in ...
What are the common elements found in the structure of fats, carbs, protein, and vitamins? What about in minerals?
Answer:
Carbon
Explanation:
Most Organic compounds contain carbon (:
If organisms inherited traits via blending inheritance, rather than Mendelian inheritance, what would we expect the offspring (F1 generation) of a blue-flowered plant and a yellow-flowered plant to look like
Answer:
green-flowered plants
Explanation:
In biology, blending inheritance refers to an erroneous theory from the XIX century, which proposed that the progeny (F1) inherits phenotypic traits as an average of parental phenotypic values. If this theory would be true then a crossing of a blue flower variety with a yellow variety of the same species would produce green-flowered progeny (since green is a combination of blue and yellow). Charles Darwin used pangenesis, a hypothetical mechanism for heredity that implied blending inheritance, in order to understand the transmission of hereditary characters. Darwin believed that different parts of the body generated heredity particles called 'gemmules' that aggregated in the gonads, and contributed to the transmission of heritable information to the next generation. The blending inheritance theory was replaced by Mendelian inheritance during the early 1900s.
Which of the methods of generating electricity shown below does NOT use alternative energy resources?
Answer:
A.Please leave a 5-star rating and Thanks!Which term best deseribes a community in which people mostly grow crops? O A. Manufacturing O B. Hunting and gathering O C. Domesticated O D. Agricultural
Answer:
Hello There!!
Explanation:
I believe the answer is D. Agricultural.
hope this helps,have a great day!!
~Pinky~
please help with my biology
Answer:
True
Explanation:
cancer cells are cells with unregulated cell growth or unchecked cell growth
which of the following criteria could Not be used to determine how closely related two types of organisms are?
A. developmental stages
B. DNA sequence
C. occurrence of both organisms in the same habitat
D. the presence of homologous structures
Answer:
The answer is c because different types and species of organisms can live in the same habitat so the mere fact that both organisms live in the same habitat doesn't mean they are closely related.
Some plant seeds have special spiky barbs that can easily get tangled in an animal's fur. The spiky structure of these seeds most likely benefits a plant by
A. keeping animals far away from the parent plant.
B. keeping the seeds from being moved away from the parent plant.
C. attracting pollinators with their bright color and fruity smell
D. helping the seeds to be scattered in new areas to grow.
Turns on the light which energy transfer happens
When a light bulb is turned on, it is powered by electricity and manages to produce both light and heat. This is something as persons we know from experience. Thus when a light bulb is turned on, electrical energy is transformed into light and heat energy.
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In x linked recessive if the mother is carrier and father is normal and their first child is male and is affected the next child is female, how much chances are there that she will be carrier?
Answer:
A 50% chance I believe. The mother will always give the X chromosome and since the father is normal and doesn't carry that ressecive trait they can only get it from the mother. (I'm not completely sure!))
Answer:
50%. 50%. False
Step-by-step explanation:
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