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
Anastasy [175]
3 years ago
7

Phenotype of offspring:—-? Genotypes of offspring:—-? Lol I need help

Biology
1 answer:
miss Akunina [59]3 years ago
3 0

Answer:

The correct answer is -

The phenotype of offspring (first cross or F1): 100% tall

The genotype of offspring (first cross or F1 - 100% Tt or heterozygous)

The phenotype of offspring in F2 (F1 × F1) - 3:1 (3 tall: 1 dwarf)

The genotype of offspring in F2 (F1 × F1) - 1:2:1 (One dominant tall: two heterozygous tall: one dwarf)

Explanation:

In this experiment of Mendel, Mendel selected the pea plant as it has various characters, short life span, and easy to breed. For this, he used two true breed lines, tall plants that had dominant allele TT and dwarf plant tt (recessive). In presence of the dominant allele, recessive alleles do not show their characteristics and only express if both alleles are recessive.

In the first cross of TT and tt

Gametes: T and t

offspring: Tt

the offsprings are all tall and heterozygous which means one dominant and one recessive allele.

second cross or F1 × F1

Tt × Tt

gametes: T, t and T, t

offspring: TT, Tt, Tt, tt

Thus,

The phenotype of offspring (first cross or F1): 100% tall

The genotype of offspring (first cross or F1 - 100% Tt or heterozygous)

The phenotype of offspring in F2 (F1 × F1) - 3:1 (3 tall: 1 dwarf)

The genotype of offspring in F2 (F1 × F1) - 1:2:1 (One dominant tall: two heterozygous tall: one dwarf)

You might be interested in
How does the solar energy that is absorbed by the earth surface affect earth
My name is Ann [436]
The heat generated by this absorption is emitted as longwave infrared radiation, some of which radiates out into space. The solar radiation (the energy) that passes through earth's atmosphere is either reflected off snow, ice, or other surfaces by the earth's surfaces
8 0
3 years ago
15,000 years ago, when humans were foragers and hunters, what characterized daily life? What were humans eating, and where and h
lisabon 2012 [21]

1. 15,000 years ago the humans were still hunter-gatherers. Their daily lives were largely based around one thing, finding enough food to survive through  the next few days. This means that they had to constantly be on the move, be it for hunting animals, or for finding rich places with eatable plants. There was lot of walking, running, and scouting involved every day. It was a lifestyle of ''living through the day''.

2. During this period of time, the diet of the humans was consisted of animals they hunted, fish, and plants. There were differences from region to region though, so the people that lived along the coastline based their diet on marine animals, the ones that were living in colder regions were eating mostly meat, while the ones living in forested areas or grasslands had combination of plants and meat. The lifestyle in general was moving from place to place, be it on a daily basis, weakly, or seasonally, depending on the conditions. Some of these people were making small shelters, some of which were retractable and they were moving them with them, while others were using caves.

3. There are many difference between the forager peoples and the agriculturalists. The foragers were nomads, thus they were moving very often from one place to another, while the agriculturalists were having a settled lifestyle. The nomads very often had bad injuries which were often fatal, usually because of hunting, while the agriculturalists had much better health because they had much safer lifestyle. The foragers were not able to produce their own food, but instead they were relying on mother nature, while the agriculturalists were producing their own food and had the food problem solved.

4 0
3 years ago
Read 2 more answers
Yep answe this plz and thanks
Fofino [41]

Answer is True

<em>Hope</em><em> it</em><em> helped</em><em> you</em><em>.</em><em>.</em><em>.</em><em> </em><em>pls</em><em> mark</em><em> brainliest</em>

3 0
3 years ago
Why is it safe to put sodium chloride on fish and chips but not safe to use sodium and chloride?​
damaskus [11]

Answer:

You can't put sodium metal and chlorine gas on your fish and chips.

Explanation:

Sodium is an electron rich metal. Chlorine is an oxidizing gas. Put them together, and they form a salt, a compound of a metal and a non-metal. Hope it helped!!

8 0
3 years ago
Read 2 more answers
What conditions are necessary for hardy-weinberg equilibrium?
Kruka [31]

Some of the conditions that must be met for Hardy-Weinberg equilibrium are:

<span>1. There must be the large population.</span>

2. The population must be isolated, thus there must be no migration.

<span>3. There must be no mutations.</span>

<span>4. There must be random mating.</span>

4 0
3 years ago
Other questions:
  • Which statement best describes both dna and rna?
    10·1 answer
  • Which of the following is an example of a nonrenewable resource?
    14·1 answer
  • In the 1800s, how did Darwin explain the origin of species?
    13·2 answers
  • What factors affect the speed of a wave?
    5·1 answer
  • Pathogens are microorganisms that can make you sick if you eat them. True or false
    10·1 answer
  • Why is a flask wider on the bottom than on the top?​
    10·1 answer
  • An animals long period of inactivity during winter is called what
    10·1 answer
  • Tesla is the unit for ___. <br> A. Luminous intensity <br> B. Magnetism <br> C. Length<br> D. Heat
    5·1 answer
  • Ii) Explain briefly how these features contribute to the efficiency of photosynthesis?​
    7·1 answer
  • PLEASE HELP ME I NEED HELP​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!