A botanist crosses two pink-flowered plants. The cross involves alleles that were not clearly dominant or recessive and could make red, pink, and white-flowered plants. If four plants are produced from the cross, what is the expected number of white-flowered plants?
Answers
Answer:
1
Explanation:
According to the information in this question, a gene coding for flower color in a plant is involved. The allele for red color (R) is incompletely dominant over the allele for white color (r) to form an intermediate phenotype/color i.e. Pink that is heterozygous (Rr) for the gene.
If two pink plants are crossed i.e. Rr × Rr, each parent will produce R and r gametes. Using these gametes in a punnet square (see attached image), the following offsprings will result: RR, Rr, Rr, and rr.
Out of these four offsprings;
1 RR is red : 2 Rr is pink: 1 rr is white
Hence, If four plants are produced from this cross, according to this question, the expected number of white-flowered plants will be 1 out of 4.
Related Questions
What happens as electrons move along the chain of molecules known as the electron transport chain?
Answers
Answer:
In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient. In chemiosmosis, the energy stored in the gradient is used to make ATP.
Plz help I’ll mark brainliest
Answers
Answer:
I'm pretty sure it's exponential growth.
Explanation:
Answer:
expontential growth!!
Explanation:
Which best describes how an enzyme affects the rate of a chemical reaction? Group of answer choices It changes the products created in the reaction. It increases the temperature of the reaction. It causes the reaction to proceed in an unfavorable direction. It lowers the activation energy of the reaction.
Answers
Answer:
It increases the temperature of the reaction.
Explanation:
Enzymes increase the speed of the chemical reaction. The reaction usually gets faster when the temperature is high. As a result, I think that this is the best choice of all.
help please!!! don’t mind the answer that’s filled in already i don’t know the answer
Answers
Answer:oop
Explanation:thats hard
Explain what the greenhouse effect is, use diagrams if you wish.
Include:
-Radiation from the sun absorbs earths heat
-Some emitted
-Trapped by the greenhouse
Answers
Answer:
See the answer below
Explanation:
The greenhouse effect refers to the heating effects produced by the earth's atmosphere on the planet as a result of the atmosphere absorbing reflected radiation from the sun by the earth.
The earth's atmosphere is a blanket of gases, some of which are referred to as greenhouse gases. These gases have the capacity to trap radiations coming from the sun that is reflected by the ground layer of the earth. Thus, they produce a warming effect on the earth.
A bulk of the radiation coming from the sun is reflected back into space by the earth's stratosphere. The small percentage that passes through are dispersed in different directions and some of them pass through the atmospheric blanket to reach the ground layer of the earth. While some are absorbed by the ground itself, some are emitted back into the atmosphere where the greenhouse gases trap a large portion and prevent them from escaping back into space.
This leads to the warming of the earth and the entire phenomenon is referred to as the greenhouse effect.
What type of cell division is occurring in the
diagram to the left?
A. Mitosis I and Mitosis Il
B. Meiosis I and Meiosis Il
C. Synthesis
D. Mitosis I and Meiosis Il
Answers
which is considered a scientific observation?
Answers
Answer:
Observations are receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments.
Any data recorded during an experiment can be called an observation.
Answer: Mahir noticed the plants he watered grew taller than those with less water.
Explanation:
which of the following latin american authors is known starting a popular literary style known as magic realism?
Answers
Explanation:
“The term magic realism is a relatively recent designation, first applied in the 1940s by Cuban novelist Alejo Carpentier, who recognized this characteristic in much Latin-American literature”(Brittanica).
Answer:
The answer above is false the correct option is Isabel Allende.
Explanation:
I did the quiz and it was correct.
2. There are many different types of cancer.
Which of the following is one thing they all have in common?
a. They are all caused by uncontrolled cell death.
b. They all start in the lungs and migrate to different parts of the body.
c. They are all caused by uncontrolled cell growth.
d. All of the above
e. None of the above
Answers
Answer:
i think its a im not sure though
What is a network of water-filled canals with thousands of tube feet called?
Answers
Which of the pair of terms is not related?
Fat-lipid
Starch-carbohydrate
Starch-nucleic acid
Sugar-carbohydrates
Answers
Answer:
starch nucleic acids uwu
Explanation:
HELP PLS!!!!!!
Polygenic traits are when one phenotype (trait) is controlled by several different genes. The provided example shows human skin color being controlled by 3 different genes. Describe one other trait (don't use skin color!) in any animal that you think could be a Polygenic trait, and explain why you think that it is (HINT: I did mention an example in class yesterday... lets SEE if you remember!).
Answers
which enzyme is responsible for creating a primer that allows the DNA replication process to start
Answers
Answer:
Primase
Explanation:
Primase: the enzyme responsible for initiating synthesis of RNA primers on the lagging strand during DNA replication.
Answer:
Primase
Explanation:
The activity for Enzyme A and Enzyme B are displayed on the graph below. Enzyme A is found in thestomach and Enzyme B is found in the intestinal tract of some animals.
What is the probable pH of the stomach?
F. 1
G. 2
H. 3
J. 4
Answers
Answer:
3
Explanation:
the probable pH of the stomach is around 3
Answer:
H. 3
Explanation:
The probable pH of the stomach is 3.
How many reactants are in the fermentation chemical equation?
Answers
1.) Pyruvate
2.) NADH
3.) A proton
The products are a lactate and NAD+.
The process of fermentation results in the reduction of pyruvate to form lactate acid and the oxidation of NADH to form NAD+
whats this,in order?
Answers
Answer:
1. Individuals in a species vary in characteristics because of differences in their genes.
Individuals will be born with various characteristics due to their genes for instance some people are short and other are tall.
2. Individuals have to compete when resources (such as food) are limited.
Resources are generally limited so individuals would have to compete t get those resources and survive.
3. Individuals with variations that help them get more of the resources are more likely to survive.
Some of the characteristics that these individuals have which are different will give them an edge and enable them to get more resources and thus survive.
4. Individuals that survive can pass their genetic variations on to their offspring.
The individuals that survive will now have offspring and will pass on their genes to their offspring which give give them the same edge their parents had.
5. Over time, there are more individuals with the variations that are well adapted to the environment.
Eventually there will be more of those offspring that can adapt as opposed to those who couldn't and keep dying out.
Large cells have more volume on the inside and less space on the outside. (Compared to a smaller cell) Because of this, large cells have trouble;
A) dividing
B) producing daughter cells
C) moving materials in and waste products out
D) making copies of their DNA
Heeeeeellppp plzzzz
Answers
Answer:
C. They have trouble moving materials in and waste products out
Help (will give crown for answer)
Answers
Answer:genes
Explanation:
I GOVE BRAINLIEST!!!
List three things you learn today about meiosis, two things you found interesting or that you would like to learn more about and one question you still have.
Please just give me random stuff to say
Answers
Answer:
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes . Meiosis also produces genetic variation by way of the process of recombination .
Explanation: Meiosis is important for three main reasons : it allows sexual reproduction of diploid organisms , it enables genetic diversity , and it aids the repair of genetic defects .
Plss follow me and Mark as brainlest
Answer:
Describe the three ways meiosis produces genetic variability. We have seen that meiosis creates variation three ways: crossing over, mutations caused during crossing over, and independent assortment.
HELP BIOLOGY ITS IMPORTANT
Answers
Answer:
Wild Type (brown), Chinchilla, Himalayan, Albino
I could be totally off but based on the research I've gathered and my knowledge on genes, that's from most common to least common.
!!ASAP plss help!! I will give u BRAINLYEST!!
Darwin used the term 'Natural Selection' to be
him explain his theory of evolution What did
Darwin mean by the term Natural Selection?
!!pleas help!! :((
Answers
Answer:
Resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Darwin meant this my term 'Natural Selection'
Answer:
He defined natural selection as the "principle by which each slight variation, if useful, is preserved".
Explanation:
Darwin's Theory of Evolution by Natural Selection
More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.
Osmosis is the movement of
across a memberane,
Food
water
oxygen
energy
Answers
Answer:
osmosis is the movement of a solvent across a membrane, so water
How much of New Orleans was flooded when the levees broke?
Answers
Answer:
I believe it's 80%
Explanation:
Explain how probability can be used to predict inherited traits.
Answers
which lipid acts as a chemical messenger? adipose tissue, cholesterol, testosterone or beeswax
Answers
Answer:
Testosterone
Explanation:
Testosterone is a chemical messenger that the brain lets out to upper and lower body muscles. Testosterone chemical messenging happens when you're exercising, pumped with adrenaline, or sexual activity.
figure 9-8 cellular respiration
Answers
Cellular Respiration is the process that takes place in cells to convert food into energy. This process is also known as internal respiration.
Which set of atoms can be found in ALL carbon-based molecule?
Answers
Answer:
All organisms are made of four types of carbon-based molecules: carbohydrates, lipids, proteins, and nucleic acids. These molecules have different structures and functions, but all are formed around carbon chains and rings.
Carbon-based molecules have three fundamental structures—straight chains, branched chains, and rings.
For this cell division, you can see that 4 daughter cells are made that have half the genetic information as the original. What type of cell division is this?
a) Diffusion
b) Mitosis
c) Meiosis
d) Photosynthesis
Answers
Answer:
The cell division where 4 daughter cells with half of the genetic information of the original are obtained is meiosis (option c).
Explanation:
Meiosis is a type of cell division through which sex cells or gametes are obtained. It is a reductive division, since the daughter cells resulting from the process contain half of the chromosomal charge with respect to the original one.
In the process of meiosis, four haploid cells are obtained from a diploid cell, each of which is involved in the reproduction of the species. This mechanism of division occurs in two stages, called meiosis I and II.
The other options are not correct because:
a) Diffusion: it is a passive trans-membrane transport mechanism.
b) Mitosis: is the cellular division of somatic cells, where the result is two daughter cells identical to the original.
d) Photosynthesis: is the mechanism by which plants obtain energy and nutrients, from solar energy.
Please help, I’m confused and have little time!
1. How does your DNA differ from other peoples?how is it similar
2.How does your DNA differ from a strawberries DNA? How is it similar
Answers
Answer:
1.DNA is more than 99% similar between any two people. All the differences in how we look, feel, behave and the differences in our health are due to less than 1% difference
2.In humans each of these cells have 2 copies of the DNA, but in strawberries each of these have 8 copies of the DNA that means strawberries have 4 times as many copies of DNA as humans, making it 4 times easier to see.
Explanation:
summarize the future use of dna technology here in 20 words or more
Answers
Answer:
DNA testing has gone mainstream. The cost of DNA sequencing has reduced faster than Moore's Law. With an estimated cost of $100 in the foreseeable future, DNA sequencing becomes more accessible and opens up new use cases, such as wider adoption of population sequencing
Explanation: