1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sloan [31]
3 years ago
6

) When predicting the phenotype of the offspring from a dihybrid cross, why is it so important that each gene is located in a di

fferent chromosome? B) You crossed a tall plant that also produces purple flowers with a short plant that produces purple flowers. Assume tall and purple flower are dominant traits. The offspring were: 100% tall plants, ¾ of the plants produced purple flowers and the remaining 1/4 of the plants produced white flowers. What were the possible genotypes of the parents?

Biology
1 answer:
Bond [772]3 years ago
7 0

Answer:

a) The genes present on separate chromosomes exhibit indepedent assortment.

b) The genotype of tall and purple flower parent= TTPp

The genotype of short and purple flower parent: ttPp

Explanation:

a) In a dihybrid cross, if the genes are present on the same chromosome, they will not exhibit independent assortment. The genes present on the same chromosome are called linked genes. Linked genes are inherited together. The absence of independent assortment of a linked gene gives more of parental types in F2 progeny. Therefore, if genes are not present on a separate chromosome, Mendel’s ratios deviate.

b) Alleles for tallness and purple flower are dominant. In the progeny, all the plants are tall. This means that the dominant tall plant is homozygous. With respect to flower color, the trait exhibits segregation of dominant and recessive alleles and both purple and white flower progeny are obtained. This makes both the plants heterozygous for the flower color gene.  

The genotype of tall and purple flower parent= TTPp

The genotype of short and purple flower parent: ttPp

You might be interested in
If the amount if algae in the ocean decreases by 50% the population of its consumers, goby fish will?
kherson [118]

Answer:

B. Decrease to its carrying capacity

Explanation:

Goby fish feed over algae for their survival and growth but if 50% of algae in the ocean decreases then the population of goby fish will decrease to its carrying capacity.

This is so because then the goby fish will be dependent on the left number of algae and maximum population size will depend on the rest 50% of food or algae available.

Hence, the correct answer is "B. Decrease to its carrying capacity".

7 0
3 years ago
The molecular bonds between atoms are considered to be _____ in a food item, before you eat it.
Daniel [21]

Answer:

Chemical energy

<h2>Which form of energy does our food contain? </h2>

Yes, food serves as a basic source of the nutrients and energy needed to maintain and grow the body. Food contains what is referred to as "chemical energy" in terms of energy. This is nothing more than the bonds between the atoms that make up the specific food item, which the body may break down to release energy that it can use to create, repair, and ensure appropriate bodily function. This chemical energy is ultimately sunshine energy, which plants have the extraordinary capacity to use and store in the chemical compounds they produce, mostly in their leaves, using sunlight, water, and atmospheric carbon dioxide. Food does indeed contain energy, but that energy ultimately originates from the sun. Since people have known this for thousands of years, many civilizations revere the sun, along with water, air, and of course fire, as the source of life. For the body to function, energy is required by the muscles, brain, heart, and liver. The food we eat provides us with this energy. Our bodies break down the food we consume by combining it in the stomach with fluids (acids and enzymes). The carbohydrate (sugars and starches) in food is broken down into another form of sugar, termed glucose, during digestion in the stomach. The glucose is absorbed by the stomach and small intestines before being released into the circulation. Upon entering the bloodstream, glucose can either be utilized right away for energy or stored for later use. But in order to utilize or store glucose for energy, our systems need insulin. When insulin is absent, glucose remains in the circulation, which raises blood sugar levels. The glucose is burnt inside of your cells to create heat and adenosine triphosphate (ATP), a chemical that stores and releases energy as the cell requires. Either oxygen is present throughout the process of converting glucose into energy, or it is not. In the mitochondria, which are microscopic structures located in the gel-like fluid that fills every cell, glucose is transformed into energy using oxygen. This conversion results in waste products including water and carbon dioxide as well as energy (ATP, heat). Without oxygen, red blood cells convert glucose into energy because they lack mitochondria. ATP, heat, and lactic acid are produced as a result. Muscle cells also use glucose as a source of energy. Muscle cells are, well, double-jointed when it comes to converting glucose into energy. They can metabolize glucose with oxygen because they contain mitochondria. However, if the muscle cell's oxygen level plummets, the cells can simply convert glucose into energy on their own without it. When you have been working out so hard that you are physically out of breath, this is most likely to occur.

#SPJ2

7 0
2 years ago
Read 2 more answers
Clearing forests of photosynthetic plants will disrupt the cycle of which matter in the biosphere?
Marrrta [24]
It would disrupt the CO2 cycle, since plants would no longer absorb carbon dioxixde, nor let out oxygen meaning it would also provide animals with little oxygen, and they can’t produce CO2 then either
6 0
3 years ago
Select all that are true about cohesion
vampirchik [111]

Answer:

1. Cohesion is the attractive force between water molecules

Explanation:

7 0
3 years ago
During a knee flexion exercise, when you begin to fatigue what movement will you attempt to perform? Why?
nignag [31]

Knee flexion exercise is an exercise that involves bending the leg at the knee joint, thereby reducing the gap between the lower leg and upper leg.

The benefit of this exercise includes:

  • Helps to strengthens the muscles in the back of the thigh.
  • Helps to strengthens the muscles at the hamstrings.

The voluntary action that i may perform after experiencing fatigue from the exercise is to Stand Upright.

The action will helps my lower leg and upper leg to regain normal posture, thereby reducing the muscle tension around my knee.

Learn more about knee flexion exercise here

<em>brainly.com/question/22466488</em>

7 0
3 years ago
Other questions:
  • 1. Scientists believe that ancient ancestors of all animals were (1 point) A) single-celled prokaryotes that reproduced asexuall
    15·2 answers
  • The chemical energy stored in ATP during photosynthesis os released during the dark phase to
    8·1 answer
  • Jim wants to plan a meal with 148 grams of carbohydrates and 1240 calories. if green beans have 7 grams of carbohydrates and 30
    14·2 answers
  • During a ________ moon, we see one whole side of the Moon here on Earth.
    5·2 answers
  • A family is composed of many what?
    12·1 answer
  • Despite living oceans apart, the North American Kangaroo rat and the Australian hopping
    11·1 answer
  • What is the product of?
    13·1 answer
  • Which of the following is NOT an example of a pre-zygotic barrier?
    14·1 answer
  • Klineflter syndrome is a defect occurs during
    12·1 answer
  • "Give two common characteristics of Archaea. Remember to use correct grammar and complete sentences" ASAP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!