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Naddika [18.5K]
3 years ago
5

What contains instructions to cells about how to form a heart ?

Biology
2 answers:
Lelu [443]3 years ago
7 0

Answer: DNA

Explanation: The Deoxyribonucleic acid contains information that instructs the cells to combine together to form a heart.

The basic structural and functional unit of life is cell. The cell division allows the cell to divide and form tissue and then from tissues to organ.

The instruction for cell division is generated by DNA. So, the instruction for cells to form heart will be given by DNA.

madam [21]3 years ago
6 0
The deoxyribonucleic acid (DNA)
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A certain type of flower has two alleles for color (blue, purple), and two alleles for stem height (tall, short). A tall blue fl
larisa86 [58]

Answer:

Mendel's law of independent assortment

Explanation:

Gregor Mendel is a really important figure in genetics, his work on pea plants provided us with many of the fundamentals of genetics that we still have today!

Mendel proposed 3 laws:

1. The law of dominance - this law states that where there are two different alleles (heterozygous) the organism will always express the dominant trait over the recessive trait

2. The law of segregation - this law states that offspring will inherit one allele from each parent, because allele pairs separate in the process of meiosis, such that each gamete contains 1 allele of each trait. When the zygote is formed, it contains an allele from each parent.

3. The law of independent assortment - this law states that traits are independent from one another at the time of gamete formation. The genes are segregated separately from one another, as the presence of one does not impact the presence of another.

This example shows that all combinations of the height and color allele are possible, and therefore nicely demonstrates the law of independent assortment

6 0
3 years ago
4. What does a total solar eclipse look like from Earth?
EastWind [94]

4. When you look up to the sky, it appears as a dark circle with  halo light at its edges moving across the face of the sun. As it does, depending on the relative position of the person on earth – that determines where they are on the umbra or penumbra of the eclipse, the place becomes a daytime twilight (umbra) or partial twilight (penumbra).

5. A new moon is formed when the moon is in between the sun and the earth. This is converse to the case of a lunar eclipse where the earth is between the sun and moon. In a new moon, the face of the moon that is faced towards the earth is dark because it is not lit by the sun. It is important to note that a solar eclipse is not formed because the moon’s orbit, around the earth, is tilted at an angle.

5 0
3 years ago
The map shows average wind speeds throughout the United states
LekaFEV [45]

part 1: inconsistent


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hope this helps.

8 0
3 years ago
Toxoplasma is a parasite that lives in what?
Kaylis [27]
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7 0
4 years ago
Is the fibula distal to the femur?
Alexxx [7]

Answer:

yes

Explanation:

The femur is the single bone of the thigh. The patella is the kneecap and articulates with the distal femur. The tibia is the larger, weight-bearing bone located on the medial side of the leg, and the fibula is the thin bone of the lateral leg. The bones of the foot are divided into three groups.

5 0
3 years ago
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