In the following tetrahybrid cross AaBbCcDd x AaBbCcDd what proportion of the F2 offspring would be expected to be genotypically AABBCCdd?A. 3/4
B. 1/2
C. 1/256
D. 81/256
E. 9/256
Answers
Answer:
C. 1/256
Explanation:
In the tetrahybrid cross, we have different four groups. Let name them Part (A, B, C & D).
Let Part A be Aa and Aa... If both traits crosses; we have
A a
A AA Aa
a Aa aa
Hence, there is a total of 4 combinations
Let Part B be Bb and Bb... If both traits crosses; we have
B b
B BB Bb
b Bb bb
Hence, there is a total of 4 combinations
Let C be Cc and Cc ... If both traits crossses; we have
C c
C CC Cc
c Cc cc
Hence, there is a total of 4 combinations
Let D be Dd and Dd... If both traits crosses; we have
D d
D DD Dd
d Dd dd
Hence, there is a total of 4 combinations
A genotype has the 4 groups together. Therefore the possible number of ways of forming the genotype = 4 x 4 x 4 x 4= 256
Now, Probability that the F2 offspring would be expected to be genotypically AABBCCdd =
=
Related Questions
1.During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will _______ a) move across the membrane to the outside of the cell.b) stop moving across the membrane. c) continue to move across the membrane in both directions. d) move across the membrane to the inside of the cell. 2.An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes (1 point) A) water to move into the cell. B) water to move out of the cell. C) solutes to move into the cell. D) solutes to move out of the cell. 3.Which of the following statements is true? (1 point) A) During active transport, a material may be moved from an area of low concentration to an area of high concentration. B) During passive transport, energy is used to move material against a concentration gradient. C) During active transport, water is pumped across a membrane to equalize the concentration of salts on both sides. D) During passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.
Do you think homeostasis is necessary at the level of a single cell ?
Which best describes the sun's affect on the water cycle
What is the most abundant gas in Earth's present day atmosphere
B) begin making their own food via photosynthesis
C) develop the ability to reproduce
D) start to sicken and perish
Answers
During the growth stage, plants begin making their own food via photosynthesis.
What is germination?
It is the process by which a seed sprout and forms a seedling.
What is growth phase?
- Until seedling is formed the embryo derives nutrition from the food stored in the seed.
- After that the plant begin photosynthesis which produces raw materials for their vegetative growth.
What happens vegetative growth is complete?
- After vegetative growth is complete plants enter into reproductive phase.
- Depending on the life span after flowering plants either die or start preparing for the next season.
To learn more about plants, growth, and photosynthesis here,
#SPJ2
It's germinate or answer b
B. The presence of vestigial structures
C. The diversity of biogeography
D. The evolution of analogous functions
Answers
The correct answer to your question is
A. The nearly universal genetic code.
Answers
Answer:
The correct answer is option C which is globular. And the correct statement is:
Globular star cluster forms from tightly packed groups of older stars.
Explanation to the answer:
- In the galaxies, stars are clustered in different patterns making different types of groups in the galaxies which can be recognized.
- There are one type of clusters which are spherical in shape and tightly packed due to gravity and they also move around the satellites. These clusters are known as globular star clusters.
- Hence option C is correct one.
The type of star cluster that forms from tightly packed group of older stars is called “The Globular cluster.”
Globular cluster is known to contain large group of old stars that are tightly and closely packed accordingly in a symmetrical but spherical form.
Further Explanation
Globular clusters are the largest and most enormous star clusters, and are known to usually appear in roughly spherical forms.
Globular clusters are usually formed through molecules of giant cloud, or enormous masses of gas that form stars due to their collapse. Notably, globular clusters cannot form today as a result of the current limited availability of free gas compared to its abundance at the early stage of the universe.
Globular clusters are found to be the oldest objects existing in the Galaxy. Globular clusters are said to contain between hundreds of thousands and millions of stars, and are heavily distinguished among other clusters due to their old age uniformity.
The relative ages of elements in globular clusters ranges from 11 billion to 13 billion years after being determined by comparing stellar population of globular clusters with stellar evolutionary models.
It should be noted that they could be as young as 9 billion years old based on modern developed research models.
LEARN MORE:
- a globular cluster brainly.com/question/3410959
KEYWORDS:
- globular clusters
- star cluster
- free gas
- stars
- galaxy
B. Increased substrate
C. Increased enzyme
D. Cold temperature
Answers
Answer:
Cold temperature
b. a thick wall of cellulose with a thin lipid coating on the inside.
c. two layers of lipids with proteins associated with the lipids.
d. two layers of lipids with a polysaccharide layer in between.
Answers
phylogenic
transitional
index
Answers
Answer:
Transitional
Explanation:
- A fossil which has traits that are common to its derived descendant group, as well as the ancestral group, is known as the transitional fossil.
- Gerobatrachus hottoni is known as the transitional fossil as it has characters that are common to frogs and salamanders and hence, is known to be a transition between the frog and the salamander.
- It is to be noted that a transitional fossil is not a connecting link between the ancestor and the descendant.