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
Marrrta [24]
2 years ago
6

The specification of the anterior-posterior axis in Drosophila embryos is initially controlled by various gene products that are

synthesized and stored in the mature egg following oogenesis. Mutations in these genes result in abnormalities of the axis during embryogenesis. These mutations illustrate maternal effect. What are the expected outcomes of parallel crosses involiving mutant gnes that contrast maternal effect and organelle heredity?
Biology
1 answer:
mojhsa [17]2 years ago
8 0

Answer:

It is possible to determine their functions and to identify the mechanism involved in their mode of inheritance  

Explanation:

Matrilineal inheritance refers to the inheritance of genes directly from the mother, it either through the inheritance of mitochondrial DNA or by the epigenetic mechanism of genomic imprinting (in the case above indicated, maternal imprinting). By mutating genes which are inherited from the mother it is possible to study their functions as well as their mode of inheritance. By using a reverse genetics approach, many maternal imprinted genes have recently been identified to be involved in embryo development, especially in model organisms like <em>Drosophila</em>.

You might be interested in
Which statement regarding the relative ages of rocks and events is
taurus [48]

Answer:

C. Faults are younger than the youngest layer they cut through.

Explanation:    

<em> A. Intrusive rock is older than the surrounding rock layers. </em>WRONG. The intrusive rocks are those that solidify underground and always form after the ones around them. So they are younger than the surrounding rocks.

<em>B. A fold is older than the oldest rock layer it contains. </em>WRONG. First, layers are set, and then, it occurs the folding. The folding is always younger than the involved layers.  

<em>C. Faults are younger than the youngest layer they cut through.</em> RIGHT. A fault is a cut through different layers that occurs when the sedimentary rock breaks transversally. It occurs always after the sedimentary rock is already formed. So the fault is always younger than all the layers it cuts through.

D. Rock layers that have been overturned are oldest from the base to the surface. WRONG. If <u>overturned</u>, according to the superposition low, layers are oldest from the surface to the base. Superposition law states that during the sedimentary rock formation, the oldest layer is always that one at the bottom, while the younger layer is the higher one.

4 0
3 years ago
How does climate and vegetation vary with latitude and elevation?​
saw5 [17]

Answer:

Climate and vegetation vary with latitude and altitude of an area. Latitude measures distance from the equator; altitude measures elevation above sea level. ... Deserts have little precipitation and little vegetation. They are found in tropical, temperate, and Polar Regions.

5 0
2 years ago
Read 2 more answers
Richard Caton used electrodes ______.
Bumek [7]
I believe it’s A. On the inside of a person’s body.
7 0
3 years ago
The __________ lies between the outer ear and the middle ear.
vlada-n [284]
<span>The human tympanic membrane or eardrum is a thin, concave membrane stretched across the inner end of the external auditory canal much like the skin covering the top of a drum. The eardrum marks the border between the outer ear and middle ear. ... The middle ear transmits sound from the outer ear to the inner ear.

Answer would be </span>
<span> tympanic membrane or eardrum</span>
8 0
3 years ago
Coral reefs protect beaches and shorelines from damage caused by__?
IceJOKER [234]

Answer:

Waves

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone please tell me if this is accurately put together?
    8·1 answer
  • QUESTION 12 Use the following study to answer the following question: A current trend among professional baseball players is to
    12·1 answer
  • DNA is made of nucleotides which are composed of
    9·2 answers
  • The tendency for an object in motion is called orbital speed
    6·2 answers
  • What is the basic function of catabolic operons like the lac operon?
    7·1 answer
  • Which ties to the Calvin cycle because it gives photosynthesis a pathway of light reactions and dark reactions.
    8·1 answer
  • PLEASE HELP! Because the universe is shifting, what happens to light from other galaxies as it reaches Earth?
    12·2 answers
  • What is active transport?
    10·1 answer
  • A brick is lifted above the ground and then dropped,
    15·1 answer
  • Why does estrogen most likely need to increase blood flow in a pregnant woman's body?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!