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3 years ago

2. What caused the mutation in the top gene?

Biology

1 answer:

Pavel [41]3 years ago

4 0

Explanation:

mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.

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The embryos of all animals undergo gastrulation, a dramatic reorganization of cells critical to formation of the animal body. Do

MrRissso [65]

Answer:

Terms associated with gastrulation includes blastula, gestation, germ layers, endoderm, mesoderm, ectoderm e.t.c

Explanation:

Gastrulation is a process involving a complex series of cell shape changes and cell movement that occurs in the blastula. It occurs during the development inside the womb over a period of time before birth.

The period of development is known as Gestation. These cells move and rearrange dramatically in the blastula creating the embryonic tissue layers which in turn produces the tissue and organs of the adult animal.

Blastula is an animal embryo or egg at the early stage an early stage of development when the cells are still in the shape of balls.

Germ layers: the formation of the embryonic tissue

During the gastrulation process, three germ layers are formed

1) Endoderm: the inner most layer

2) Mesoderm: Middle layer

3) Ectoderm: outermost layer

Cells that are tightly attached to each other via junctions will move as cell sheets

Invagination – Cell sheet dents inward

Involution – Cell sheet rolls inward

Delamination – Cell sheet splits in two

Ingression – Cells break away from cell sheet and migrate as individual cells

Archenteron- or embryonic gut/digestive cavity of the embrayo which eventually becomes the digestive tract

Blastoderm: is a single layer of embryonic tissue that later develops to the blastula and divides into the three germ layers from which the embrayo develops

3 0

3 years ago

You should eat_______grams of carbohydrates per pound of body weight.

horsena [70]

The answer is C. 5-7.
Hope this helps! :)

3 0

4 years ago

Read 2 more answers

A pair of mice are bred several times generating the following data table. What are the most likely genotypes of the parents?

Tamiku [17]

Answer:

This question lacks options, the options are:

A) FF and ff

B) FF and Ff

C) Ff and Ff

D) Ff and ff

The answer is D (Ff and ff for parent 1 and 2 respectively)

Explanation:

This question depicts a single gene coding for fur colour in mice. The gene controls two traits, black fur and white fur, encoded by alleles F and f respectively.

According to the question, a pair of mice has been bred several times to generate the same data of 22 black fur and 23 white fur mice. Based on this data, it shows that the phenotypic ratio of black to white mice is 1:1.

To get a 1:1 phenotypic ratio of black fur offspring to white fur offspring, the parents mice must have genotypes Ff (heterozygous) and ff (same recessive alleles).

In a cross between parents Ff × ff (see punnet square), offsprings with the following genotypes will be produced: Ff, Ff, ff and ff. Ff is black furred while ff is white furred.

Ff (2) : ff (2) is equivalent to Ff (1) : ff (1).

Hence, a data of 22 black mice and 23 white mice which represents a 1:1 ratio will only be produced by parents mice with genotypes: Ff and ff.

3 0

4 years ago

Which of the following is a possible future benefit of stem cell research

Trava [24]

With out any options to chose from,
the best answer would be
...to greatly extend the numbers and range of patients who could benefit from transplants, and to provide cell replacement therapy to treat debilitating diseases

5 0

4 years ago

What do we call the cultivation of plants and animals for food, medicine and other products?

Masja [62]

Agriculture.

hope this helps :), please mark brainliest.

7 0

3 years ago

Read 2 more answers