All categories

3 years ago

How does isolation of a population lead to a decrease in genetic diversity

Biology

1 answer:

exis [7]3 years ago

8 0

Answer:

Decrease in genetic diversity reduces the chance of variation in the offspring.

Explanation:

If there is no variation, there will be no evolution. So, if there is a change in the environment (like an outbreak of a disease) that affects one of the organisms, it is likely to affect all of them and destroy the whole population. This would lead to extinction.

You might be interested in

Emily and Zach are two students working in the lab to improve the stability and activity of the newly discovered transport prote

mezya [45]

Answer:

A mutation in the N-terminal region may alter protein stability

Explanation:

Transport proteins are proteins capable of transporting substances through biological membranes. These proteins are located within cellular membranes where they form channels that allow the movement of substances between the internal and external sides of the membrane. The N-terminus is the first region in the protein that emerges from the ribosome during its synthesis. This region is usually composed of signal peptides consisting of about 30 amino acids required for protein delivery. Moreover, the N-terminal region is also important because it dictates protein degradation by peptidases. Consequently, mutations in the N-terminal region of transport proteins can alter the properties of these proteins, i.e., either by modifying protein stability or by altering protein signaling.

7 0

2 years ago

if the ratio of the ages of kisii and esinam is 3:5 and that of Esinam and Larry is 3:5 and the sum of the ages of all three is

larisa [96]

Answer:

The age difference between the oldest and the youngest is 48.

Explanation:

Given the following data;

The ratio of the ages of Kisii (K) and Esinam (E) is 3:5.

The ratio of the ages of Esinam (E) and Larry (L) is 3:5.

The sum of the ages of all three is 147.

Since the age of Esinam is common in both ratios, we find the lowest common multiple (LCM);

LCM of 3,5 = 15.

Hence, the ratio of the three ages is now;

K:E:L = 9:15:25

Let their ages be denoted by x;

$K:E:L = 9x:15x:25x$

The sum of all three ages is;

9x + 15x + 25x = 147

49x = 147

x = 147/49

x = 3.

To find the age difference between the oldest and the youngest;

The oldest is Esinam = 25x

The youngest is Kisii = 9x

Therefore, 25x - 9x = 16x

Substituting the value of x, we have;

x = 3; 16x = 16(3) = 48.

The age difference between the oldest and the youngest is 48.

6 0

3 years ago

Dr. Burke is a vertebrate paleontologist. Which of the following is he most likely to study?

BigorU [14]

Answer:

Reptiles

Explanation:

Vertebrate paleontology covers everything from the tiny, fish-like creatures, to the salamander-like ancestors of all land vertebrates, to dinosaurs, mammals, flying and swimming reptiles, etc.

Hope this helped

3 0

2 years ago

Primary features of a long bone. Which of the following correctly pairs the structure at C with its primary component?

OlgaM077 [116]

Answer:

periosteum ----> dense irregular connective tissue

Explanation:

The periosteum is a dense fibrous membrane that covers the surfaces of bones.

The periosteum consists of two layers-

1. Outer fibrous layer

2. Inner cellular layer

It is mainly composed of dense irregular connective tissue along with a layer of simple squamous epithelium.
The function of periosteum is to cover the surface of all the bones except those surfaces that are covered with cartilage such as joints and tendons and ligaments.

4 0

2 years ago

Realiza la configuracion electronica,la CEE,grupo y periodo,de cada elemento,la estructura de lewis y la formula de sarrollada d

lesya692 [45]

Answer:

1s2 2s2 2p4

Explicación:

1s2 2s2 2p4 es la configuración electrónica de la molécula de agua. En el agua, hay 10 electrones, dos de hidrógeno y ocho de oxígeno. La subcapa 2s contiene un máximo de 2 electrones, mientras que la capa 2p puede acomodar seis electrones. El átomo de hidrógeno pertenece al primer grupo y el átomo de oxígeno pertenece al sexto grupo de la tabla periódica. En la estructura de Lewis, un átomo de oxígeno está unido a dos átomos de hidrógeno en un ángulo de 104,45 grados. Existe un enlace covalente presente entre el hidrógeno y el átomo de oxígeno en el que ambos se vuelven estables. El oxígeno necesita dos electrones, por lo que forma enlaces con dos átomos de hidrógeno que tienen un electrón cada uno.

3 0

2 years ago