Which statement is true of Y chromosomes?

1 answer:

6 0

Only men have Y chromosomes.

Women have two X chromosomes
Men have an X and a Y

Women=XX Men=XY

I hope this helps! I'm happy to answer any other questions you may have :)

You might be interested in

It’s in picture up there

Crank

Answer:

The correct option is 'this guinea pig could be homozygous dominant (HH) or heterozygous (Hh).'

Explanation:

When both the alleles of a gene are the same then they are termed to be homozygous. If a gene possesses two different types of alleles then it is termed as heterozygous.

A dominant allele is the one which can suppress the effect of a recessive allele. A recessive allele is the one which gets masked by the dominant allele.

For a dominant trait to occur, an organism can either be homozygous dominant for that trait or it can be heterozygous for the trait.

4 0

3 years ago

Ames adds some magnetic marbles to a glass jar full of ordinary marbles, and then shakes up the jar.

artcher [175]

Answer:

Magnetic marbles will tend to attract each other.

Explanation:

Magnetic marbles are composed of ferromagnetic materials, which indicates that they function as a magnet and have the ability to attract other objects formed by ferromagnetic materials. In this case, we can say that the magnetic marbles attract each other and inside a jar containing magnetic marbles and common balls, the magnetic marbles will tend to attract and group together.

6 0

4 years ago

Why are ferns and mosses poorly adapted to a terrestrial life

asambeis [7]

Answer:

Because they require a WATER medium for reproduction

Explanation:

Ferns are a group of living organisms under the division; Pteridophyta while mosses belong to the group Bryophyta. Mosses are considered primitive and non-vascular plants because they lack true stems, leaves and roots or vascular tissues. while ferns possess these organs, hence, are said to be vascular.

However, ferns and mosses are poorly adapted to a terrestrial life i.e. life on land because they both require a water medium for their motile male gametes to swim and fertilize their eggs (female gametes).

3 0

3 years ago

In a hydrogen ion pump, the energy is used to join small molecules together

LuckyWell [14K]

i think the correct answer is B considering that the channels are not always open for the protons to freely diffuse through the inner membrane.

5 0

3 years ago

Las característica de los bioelementos

statuscvo [17]

Answer:

CHARACTERÍSTICAS DE LOS BIOELEMENTOS:

*Masa molecular pequeña: esto les permite compartir electones de su capa externa y formar enlaces covalentes estables.

*Polaridad: muchas veces la tienen los compuestos formados. ...

*El carbono comparte cuarto electrones formado cuarto enlaces covalentes muy estable.

8 0

3 years ago