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
Mademuasel [1]
3 years ago
6

In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite f

orms of both traits, how many of the offspring would be expected to be homozygous recessive for both traits?
Biology
1 answer:
Simora [160]3 years ago
4 0

Answer:

The question lacks options, the options are:

A) 1 out of 16

B) 3 out of 16

C) 6 out of 16

D) 9 out of 16

The answer is 1 out of 16

Explanation:

This is a DIHYBRID cross because it involves two different genes coding for distinct traits. One of the traits will be dominant while the other recessive. Hence, parents that are purebred for opposite forms of the trait means that one parent is homozygous dominant while the other is homozygous recessive. When these two parents cross, they produce F1 offsprings that all possess the dominant trait but heterozygous/hybrids.

When these hybrids are self-crossed, they produce four different combinations of gametes which when crossed using a punnet square will result in F2 offsprings with a 9:3:3:1 phenotypic ratio according to Mendel's observation.

9 represents offsprings that are dominant for both traits

The two 3's represents offsprings that are recessive for one trait and dominant for the other respectively.

1 represents offsprings that are homozygous recessive for both traits.

Hence, 1 out of 16 offsprings will be homozygous recessive for both traits.

You might be interested in
Distinguish between a waxing moon and<br> a waning moon.
Dmitrij [34]

Answer:

Waning is the opposite, or decreasing after a full moon, and is always illuminated on the left. Then, there is a waxing or waning Gibbous moon, which means more than half of the moon is illuminated. Waxing means to increase/get bigger, and waning means to decrease/get smaller.

5 0
3 years ago
15. Knowing that the genetic code is almost universal, a scientist uses molecular biological methods to insert the human B-globi
Elina [12.6K]

Answer:

The genetic information of living organisms is sequenced in DNA, which allows inheritable factors to be transmitted with each replication process. Proteins play a very important role by intervening in their metabolism during the translation and transcription of information. .

eukaryotic and prokaryotic organisms have different evolutionary sequelae that are reflected in the mechanisms they use for DNA translation, such as in the initial stages, lengthening and termination of sequencing, these differences are imparted by the order of the genes, the ribosome and its structural form and the promoter sequences.

In this way we can conclude that although the eukaryotic genes enter into a bacterium, the type of information that they take may arrive incomplete and this may generate subsequent defects for their operation, but there may be processes that guarantee a better transfer of information with the use of genetic engineering and enzyme management to introduce different bacterial genetic expressions with eukaryotic genes.

3 0
3 years ago
How are frogs adapted for terrestrial life?
shusha [124]
Frogs are amphibians, which means they need to live in both water and land.

They are adapted to hop on land with their feet, and their tongue to eat.

The reason frogs have lungs and also breathe through skin is so they can breathe in both of their habitats
3 0
2 years ago
In which way are a prokaryotic cell and a eukaryotic cell alike?
natima [27]
They are alike because they are the simplest form of life and the carry genetic information.
4 0
3 years ago
Read 2 more answers
Describe the three types of waves that emanate from and earthquake. Compare their speed, type of motion and what the types of ma
Setler79 [48]

Answer:

The types of waves that emanate from and earthquake are the body waves (P-waves and S-waves), and the surface waves. The surface waves travel along the suface, and are are the slowest, even though they do the most damage in an earthquake. While the P-waves travel the fastest through solids, liquids, and gases. S-waves, however only travel through solids.

Explanation:

Hope that helped hun <3

8 0
2 years ago
Other questions:
  • 1. Which of the following correctly describes homeostasis in protists?
    9·2 answers
  • What is the relationship between the chemical reaction for photosynthesis and the chemical reaction for respiration
    12·1 answer
  • "Talking Wrong" is an essay about author Patricia Smith's mother's move from Alabama to Chicago and her attempt to speak standar
    9·2 answers
  • BLANK can disrupt cellular homeostasis and can even lead to uncontrolled cell division and the formation of cancers.
    12·2 answers
  • Follow these steps and study the table to answer the question. go to the weekly us map: influenza summary update. at the top of
    11·1 answer
  • In 3–5 sentences, explain how the shape of planetary orbits affects their orbital velocity. Include the proper law of planetary
    7·1 answer
  • Which body system includes vitamin D production and protection against pathogens and excess water loss?
    14·1 answer
  • The age of the solar system is estimated by the dating of rocks.<br> True or false
    9·1 answer
  • Spores do not stain easily. perhaps you have seen them as unstained white objects inside bacillus species in other staining proc
    14·1 answer
  • Explain the reciprocal relationship between human society and limiting factors.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!