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Keith_Richards [23]
1 year ago
12

In drosophila, proper anteroposterior and dorsoventral development requires a separate set of maternal effect gene products accu

mulating in the appropriate area of the embryo. True or false
Biology
1 answer:
rosijanka [135]1 year ago
4 0

It is true. In drosophila, distinct sets of maternal impact gene products must accumulate in the proper region of the embryo to ensure proper anteroposterior and dorsoventral development.

<h3>What makes Drosophila unique?</h3>

The use of Drosophila over vertebrate models has many technological advantages;

  • they are simple and affordable to culture in lab settings,
  • have a significantly shorter life cycle,
  • produce huge numbers of externally deposited embryos
  • may be genetically manipulated in a variety of ways.
<h3>Why is Drosophila referred to be the genetic Cinderella?</h3>
  • Drosophila, which means "dew loving," is derived from the Greek word drósos.
  • Fruit flies, or Drosophila melanogaster, are referred to as the genetic Cinderella.
  • This term was given to them because of their 12-day lifetime, ease of culture, and ability to produce numerous offspring from a single reproduction.

learn more about drosophila here

brainly.com/question/14458439

#SPJ4

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The region of a Drosophila embryo with a low concentration of bicoid protein will develop into the _____. a) abdomenb) male flow
joja [24]

Answer:

The correct option is d) head.

Explanation:

Bicoid protein works as a transcription factor. It enters the nuclei of the embryos in early segmentation, where it activates the hunchback gene. In Drosophila, embryonic development begins at the time of fertilization. The sperm enters the mature oocyte through the micropile, a structure located in what will be the anterior region of the egg. Bicoid and hunchback mRNAs, protein products are critical for the formation of the head and thorax. Already in the early stages of oocyte development, certain mRNAs are located in specific regions of the oocyte: mRNA molecules encoding the Bicoid protein are preferentially located in the anterior region of the oocyte. Moderate levels of the bicoid protein are necessary to activate the formation of the thorax (i.e., the expression of the hunchback gene) but the formation of the head requires high concentrations of Bicoid, the promoters of a specific gap gene of the head must have sites of low affinity binding for Bicoid, so that this gene can be activated only in extremely high concentrations of Bicoid.

The lack of Bicoid protein affects the formation of the head and other structures in the anterior region of the oocyte.

6 0
3 years ago
This question is 15 points. The same amount of heat is needed to make a metamorphic rock as is needed to make an igneous rock. T
Alborosie

Answer:

False

Explanation:

Igneous rocks need more heat than metamorphic rocks.

7 0
3 years ago
Read 2 more answers
Lawrence Kohlberg built on the theories of _____ in his description of the stages of moral development. A. Carol Gilligan B. Jea
Ymorist [56]

Answer:

Lawrence Kohlberg build on the theories of Jean Piaget in his description of the stages of moral development.

Explanation:

The earlier work of Jean Piaget on cognitive development of children was expanded by Lawrence Kohlberg which he described in 6 stages.

1.Stage 1 : Obedience and punishment orientation

This is focused on children to obey rules and avoid from punishment.

2.Stage 2: Orientation through instruments

Individual should have to be in their  best interest

3.Stage 3 : Good boy , nice girl orientation

The children will approve others and acts to avoid disapproval.Emphasis is placed on good and nice behavior.

4.Stage 4:Law and order orientation

The child will accept the rules of the society  as rules are same for everyone.

5.Stage 5: Social contract orientation-

The world holds different opinions,right,and values and each will accept it mutually.

6. Stage 6: Universal ethical principal orientation-

It is based on abstract reasoning where ethical principles are used.

7 0
3 years ago
3 Explain why the average height of students is increasing in many parts of the world.​
denpristay [2]
<h2> The average height of people in different nations has  has increased approximately by 10 centimeters.</h2><h3>It mostly comes down to nutrition and child-rearing styles. </h3><h3>Some scientists believe that the increase in teenage and out-of-wedlock pregnancies in the developed world may be an unanticipated consequence of improved nutrition.</h3>

Tobacco smoking greatly increased over the last hundred or so years, but the old wives' dictum was always that "Smoking will stunt your growth!"

Hope this helped have a good day = )  .

6 0
3 years ago
What do a dinosaur and a tree have in common?
KengaRu [80]

Answer:

The correct answer will be option- A

Explanation:

Both dinosaur and the trees are the living organisms which share many characteristics of the living organisms.

Among the given choices, the most common things between these two different species of the living organism are that they are made of the same constituents which makes the lowest organization of life on earth that is the cell.

Since the cells of both tress and the dinosaur are made up of the same matter or the constituent elements arranged in similar fashion therefore, the selected option is the correct answer.

7 0
3 years ago
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