A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or
short (k) stem. A scientist is preparing a Punnett square for a dihybrid cross
of a plant with a genotype GGKK. What possible gametes can the plant
produce?
O A. GG, Kk
O B. GK gk
OC. GK, Gk
OD. GK, Gk, gk gk
Answers
Gamete refers to the haploid germ cell (male or female) which is able to fuse with another gamete of opposite sex of the same species in order to produce zygote.
According to the law of segregation only one copy of the gene (allele) is distributed to each gamete. In addition, it is a random process.
For example, gene Aa would result in the formation of two types of gametes. One will carry A and the other will carry a.
Now, according to the law of independent assortment, alleles of two or more genes are into the gametes independent of each other.
For example, in AABB alleles of gene AA and alleles of BB will be inherited independent of each other.
Now, gametes produced from gg will of only one type that is, g.
Gametes produced by Kk will be of two types which are K and k.
Lastly, all the alleles will be inherited independent of each other which forms two types of gametes. One bearing gK and one bearing gk.
Related Questions
Bloom syndrome is an autosomal recessive disease that exhibits haploinsufficiency. A recent survey showed that people heterozygous for mutations at the BLM locus are at increased risk of colon cancer. Suppose you are a genetic counselor. A young woman is referred to you whose mother has Bloom syndrome; the young woman's father has no family history of Bloom syndrome. The young woman asks whether she is likely to experience any other health problems associated with her family history of Bloom syndrome. What advice would you give her?
Answers
Answer:
The correct answer is - she is heterozygous for a mutated BLM allele and will have an increased risk of colon cancer.
Explanation:
Autosomal recessive disease expresses itself in next-generation only if there is both alleles are recessive for the gene. In haploinsufficiency, the dominant allele fails to express itself in the phenotype due to insufficiency. So, if even one allele of the recessive gene present in the haploinsufficiency case, it will affect and express its trait.
She is heterozygous for a blood syndrome, as her mother had but her father has no disease, allele and will have an increased risk of colon cancer.
Which of the following are true statements about ozone holes? (Select the three best
answers.)
A.Ozone holes don't have any ozone in them.
B. Ozone holes allow ultraviolet light to reach the Earth's surface.
C. Chlorofluorocarbons make an ozone hole larger.
D. Ozone holes have more ozone than usual.
E. Ozone holes can be hole-shaped.
F. There is always just one ozone hole in the Earth's atmosphere.
Answers
Answer:
Ozone holes have more ozone than usual.
Correct Answer
Ozone holes allow ultraviolet light to reach the Earth's surface.
Ozone holes don't have any ozone in them.
Chlorofluorocarbons make an ozone hole larger.
Explanation:
Ozone has been the atmospheric layer that protects the earth. It allows the ultraviolet rays to enter the earth, and there is one ozone hole due to the Chlorofluorocarbons. Thus, options B, C, and F are correct.
What is an ozone hole?An ozone layer is defined by the presence of the ozone gas that is present in the atmosphere of the earth. The ozone hole is the hole in the ozone layer that is due to the depletion of the ozone gas in the layer due to increased global warming and pollution.
The increased concentration of Chlorofluorocarbons (CFCs) generated from aerosols, air conditioners, and refrigerants have resulted in a hole in the ozone layer. This lead to increased exposure of the organism to the harmful UV radiations emitted from the sun.
Also, this has resulted in increased climatic changes because of the global warming and heating of the atmosphere due to the entrapment of the UV and Sun rays. This leads to various diseases including cancer and eye irritation.
Therefore, the ozone hole is due to increased Chlorofluorocarbons. options B, C, and F are correct.
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AZT works by interfering with HIV's production of offspring inside a host cell. It does so by interacting with a molecule called reverse transcriptase.
a. True
b.False
Answers
Answer:
a. True
Explanation:
AZT is an abbreviation for azidothymidine and it is the first effective drug against the human immunodeficiency virus (HIV). Thus, azidothymidine is considered to be the first anti-retroviral drug used for the prevention and treatment of the human immunodeficiency virus (HIV).
AZT works by interfering with HIV's production of offspring inside a host cell. It does so by interacting with a molecule called reverse transcriptase.
Basically, the shape and composition of the reverse transcriptase plays a significant role in the interaction. Therefore, this anti-retroviral drug known as AZT may not work effectively if the shape and composition of the reverse transcriptase changes.
Furthermore, the high mutation or replication rate of the human immunodeficiency virus (HIV) owing to its enormous genetic diversity has made it extremely difficult to develop an effective and accurate vaccine against the virus.
Hence, the human immunodeficiency virus (HIV) possesses a high error rate.
What is the function of the mitochondrion?
Answers
[tex] \bf \:Answer:- [/tex]
Mitochondria are the tiny-road shepherd or spherical organelles which are found in the cells these are small road like structures they oxide food to provide energy day are found in large number in cytoplasm in the cells. Mitochondria are called the "Power House of the Cell".
(Note :- Singular : Mitochondrion )
Additional information :-Golgi Bodies
The main function of golgi bodies is the creation of proteins and enzymes which help in cellulose function.
Ribosomes
The synthesis of proteins occurs with the ribosomes.
Centrosomes
These are found near the nucleus day initiate the process of cell division and are present only in the animal cell.
two similarities between mesozic and Cenozoic era on the basis of evolution
Answers
Answer:
Similarities between mesozoic era and cenozoic era are defined below :
- Mesozoic era and Cenozoic era both started to evolve right after the mass extinct according to the sources of evolution.
- Mass extinction is stated as (K-extinction) and many of the major life forms evolved during these two eras.
- Fossils of birds and reptiles were found in Mesozoic era and Fossils of mammals were found in the Cenozoic era.
Explanation:
Thanks for asking the question
John was told by his physician that he was vitamin D blood levels were low. John needs to eat foods that are rich in
Answers
Answer:
Vitamin-D in the blank.
Explanation:
If you think you may have a deficiency, it's important that you speak to your doctor and get your blood levels measured. Fortunately, a vitamin D deficiency is usually easy to fix. You can either increase your sun exposure, eat more vitamin-D-rich foods, such as fatty fish or fortified dairy products.
If Tom Harris had type AB blood and Mary had type O, could the type O child they brought home be their child? * No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B. Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominate to O. Yes; the baby inherited type O blood from the mother Mary Harris which is dominant to the genes for both A and B.
Answers
Explanation:
No, the baby would have to have inherited a gene for O from both parents and Tom has only a gene for A or B.
The study of blood is called hematology. The component of blood is RBC, WBC, platelets, and plasma.
The correct answer to the question is option B.
What is a blood group?A blood type is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.The genes A and B are dominant over O therefore the O blood group can not be seen in offspring.
Hence, the correct answer to the question is option B is Yes, both parents had the recessive hidden gene for O blood in their genotype which they passed on to the baby. No; the baby would have to have Type AB blood that it inherited from the father since A and B are dominant to O.
For more information about the blood group, refer to the link:-
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3. Which of the following is a chemical property
(10 Points)
melting point
Ostates of matter
density
flammability
4. Substances formed as a result of a chemical reaction are called *
Answers
Answer: The answer is flammability
Explanation:
because it is a chemical thing happening
in you own opinnion how did life originate on earth?
Answers
Answer:
The earliest known life-forms are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya (billion years ago), relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the Earth 4.54 Gya.
Use the context of the urinary system to explain the term osmoregulation
Answers
Answer:Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.
Explanation:
Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.
hich two phrases in this passage point to the meaning of the word stealthily?
The question in her mind, and one not easily solved, now was, 'How can I get away?' So, as was her usual custom, she 'told God she was afraid to go in the night, and in the day every body would see her.' At length, the thought came to her that she could leave just before the day dawned, and get out of the neighborhood where she was known before the people were much astir. 'Yes,' she said, fervently, 'that's a good thought! Thank you, God, for that thought!' So, receiving it as coming direct from God, she acted upon it, and one fine morning, a little before day-break, she might have been seen stepping stealthily away from the rear of Master Dupont's house."
direct from God
get away
bulk and weight
usual custom
before day-break
Answers
Answer:
B and E
Explanation:
Because thats what stealthy means
The meaning of the word stealthily is get away and before day-break.
What is stealthily?You can enter a building discreetly at times, such as when users creep about quietly in the darkness to prevent being seen.
What is get away?Get away means flee from someone or somewhere;
Hence, The meaning of the word stealthily is get away and before day-break.
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Original DNA Sequence:
TACACCTTGGC GACGACT
mRNA Sequence:
Amino Acid Sequence:
Answers
Explanation:
ATGTGGAACCG CTGCTGA
UTGTGGUUCCG CTGCTGU
I need help because it’s not easy
Answers
Which of the following best describes a difference between a mutualistic relationship and a parasitic relationship? A. Parasitism harms both organisms, while mutualism harms only one organism. B. Parasitism benefits only one organism, while mutualism benefits both organisms. C. Parasitism involves only two organisms, while mutualism involves many organisms. D. Parasitism continues for many generations, while mutualism is limited to one generation.
Answers
Answer:A. Parasitism harms both organisms, while mutualism harms only one organism. B. Parasitism benefits only one organism, while mutualism benefits both organisms.
Explanation:i hope this helps
Give brainlist to the best answer
Answers
Answer: The answer is 'it provides spores for reproduction'
Explanation:
A young woman, who was adopted at birth, comes into your office asking you to help her identify her birth father. She already knows that the blood type of her birth mother is A positive. She knows her birth father is one of three men who are willing to help in her search. Your first step is to do a blood test on the daughter. Your results show that she is type AB negative. You make some phone calls and have the three possible fathers come in to give a blood sample. Here are the results:
Man #1 – O negative
Man #2 – B negative
Man #3 – AB positive
From this information, can you conclude who the father is? Is there anyone you can exclude? What tests could you do further to confirm your analysis about who the father is?
Answers
Answer:
Man no.3
Explanation: Mother A positive and daughter AB negative means that the dad would be AB positive.
Please Answer 6 7 8 9 10 Pleaseeeee
Answers
Answer:
hey what if you dont know it
Explanation:
Which of these rocks are formed by erosion and deposition?
Answers
Answer:
limestone and sandstone
Explanation:
Answer:
Sandstone and Limestone
Explanation:
I took the test (it was very easy for me)
Fill in the blank:-
▪︎Handpicking is used to separate larger size impurities from _________.
Define:-
1. Threshing
2. Winnowing
3. Sieving
Write in your words
Answers
Explanation:
Threshing- The process of separating grains from the harvested crop is called threshing.
winnowing-The grain is separated from the chaff with the help of wind is called winnowing.
Sieving- Sieving is a simple technique for separating particles of different size.
In the United States, which of the following would increase energy efficiency?
a.using public transportation and developing more efficient engines for vehicles b.turning thermostats down in winter and up in summer
c.insulating homes and businesses
d.All of the above
Answers
Answer:
D-All of the above
Explanation:
They all would increase energy efficiency.
Answer:D
All of the above
Explanation:
Just take the test
Please help I’ll give brainliest to whoever helps :)
Answers
Answer:
Explanation:
okay i will help u too:)
Answer:
birds and cows are consumers. grass and trees are producers. Mushrooms are decomposers
Which plants are smaller than earth ?
Answers
Answer:
Mercury and Venus
Answer: Mercury Venus and Mars
Explanation:
the oxygen of air diffuses out from
Answers
Answer:
From higher concentration to lower.
Explanation:
The oxygen diffuses out from a region of higher concentration to the region of lower concentration because of diffusion. The air contain high amount of oxygen and human body has low oxygen level so the oxygen moves from the air to the lungs of the human body from there oxygen is loaded in the hemoglobin while on the other hand, carbondioxide is removed from the blood into the lungs which goes outside the body through breathing.
7. How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that
support your argument. HELP
Answers
Which type of pollution is caused by the use of excess nutrients and pesticides?
Water
Soil
Air
Crop
Answers
Answer:
Water
Explanation:
This is called Eutrophication. This happens when extra nutrients seep into water causing algae and other organisms to grow.
Brainliest?
Black mice and tan mice are native species that are observed in a particular region. Human habitation in the region caused an invasive mouse species to enter the region. These mice are brown and share the same food requirements as black mice. Tan mice have different food requirements. How will this change affect the food web in the region? A. The availability of food resources for black mice and brown mice will decrease. B. The population of tan mice will decrease. C. The black mice and tan mice will compete for food resources. D. The tan mice and brown mice will compete for food resources.
Answers
Answer:
A
Explanation:
The correct answer would be that the availability of food resources for black mice and brown mice will decrease.
Since the food requirements of the black mice are the same as that of the invasive brown mice, the available food supply that used to be only for the black mice would now be shared by the two strains of mice. Hence, the available food for the two groups of mice will naturally decrease.
There is no sufficient information to conclude that the population of tan mice will decrease, hence, option B is incorrect.
The black mice and tan mice have different food requirements going by the information available in the illustration, hence, both cannot compete for food resources. Option C is, therefore, incorrect. In the same vein, option D is incorrect because the tan mice have different food requirements from the brown mice.
The only correct option is A.
What is an example of a eukaryotic cell?
Answers
Explanation:
Plant cell
Is the best example of a eukaryotic
[tex] \bf Eukaryotic \: cells : - [/tex]
They are complex and larger than the prokaryotic cells its name is drived from a Greek word meaning 'good' or 'true nuclei' they consist of the cell wall which protects and supports the plasma membrane these cells are found in all organisms except bacteria and blue green algae for example plant animal fungi etc all are eukaryotes. Amoeba is a eukaryote because it has a distinct nucleus which is bound by nuclear membrane.
Additional information :-Cell :- Smallest structural and functional unit of a living organisms.
Unicellular organisms :- The organisms made up of one cell only.
Multicellular organisms :- The organisms made up of two or more cells.
Cell wall :- The covering of cellulose outside plasma membrane also called plasma membrane.
Centriole :- The cell organelle that helps in cell division found only in animal cell.
Chloroplast :- The photosynthetic originals found in a plant cell green in colour due to the presence of chlorophyll.
Tissue :- A group of cells having the same structure performing the same function.
Nucleus :- The control centre of the cell
If the acceleration in question 8 is constant, what's the average velocity of the object described?
Answers
Answer: average velocity = initial velocity + 1/2 acceleration* time
Explanation:Q8 unavailable, but at constant acceleration a
if initial velocity is v1, final velocity v2 and average velocity (v1+v2)/2 and the time interval t,
v2 = v1 + at and average velocity = v1 + 1/2at
PLEASE HELP :( Match the vocabulary from this section with its example.
Answers
Answer:
3 community
4 population
5 ecosystem
2 abiotic
1 biotic
The location in the cell for aerobic respiration is the..?
Answers
Answer:
mitochondria
Aerobic respiration is characteristic of eukaryotic cells when they have sufficient oxygen and most of it takes place in the mitochondria.
Explanation: