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IgorC [24]
3 years ago
12

The allele for a widow’s peak has complete dominance over the allele for a straight hairline (w). What is the probability of two

parents heterogeneous for a widow’s peak (Ww) having an offspring without a widow’s peak?
Biology
2 answers:
alukav5142 [94]3 years ago
8 0

Answer:

25

Explanation:

Vitek1552 [10]3 years ago
5 0

Answer:

75 Percent

Explanation:

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What occurs during the mitosis stage of the cell cycle?
Dennis_Churaev [7]

Answer:

The dna Seprates into two

Explanation:

also the cytoplasm divdes causing it to create two whole new cells

6 0
2 years ago
Which area of the brain responds to an increased concentration of blood electrolytes and initiates drinking behavior?
34kurt
<span>The hypothalamus is the </span>area of the brain that responds to an increased concentration of blood electrolytes and initiates drinking behavior.
The hypothalamus contains a number of small nuclei with a variety of functions.<span>It coordinates automatic brain functions and hormone release. Alcohol depresses nerve centers in the hypothalamus that control sexual arousal and performance. </span>
3 0
3 years ago
The dog family is Canidae. Some well-known members of the dog family are the domestic dog, Canis familiaris; the coyote, Canis l
Bumek [7]

Answer:

The correct answer is "The common ancestor of coyotes and domestic dogs is more recent than the common ancestor of red foxes and domestic dogs".

Explanation:

One of the fastest way to known if two species have recent common ancestors is to look if they have common taxonomic ranks. In this case we can conclude that The common ancestor of coyotes and domestic dogs is more recent than the common ancestor of red foxes and domestic dogs, because the coyotes (Canis latrans) and the domestic dogs (Canis familiaris) share the same genus (Canis). The common ancestor of foxes and domestic dogs is more ancient because red foxes (Vulpes fulva) do not share the same genus has domestic dogs (Canis familiaris).

3 0
3 years ago
Match the terms to their definition. 1. chromosome a cell whose nucleus is not bound by a membrane 2. eukaryote a genetic charac
yanalaym [24]

Answer:

1. chromosome: tight coils of DNA

2. Eukaryote: a cell that has a membrane-bound nucleus

3. Gene: a specific sequence of DNA nucleotides that carry hereditary traits

4. Prokaryote: a cell whose nucleus is not bound by a membrane

5. Trait: genetic characteristic of an individual

Explanation:

Chromosomes are the thread-like structures that appear during cell division. Each chromosome is made up of DNA tightly coiled with its packing proteins.  

A cell is defined as eukaryote or prokaryote on the basis of the presence of a membrane-bound nucleus. The cells that lack the membrane-bound nucleus and other membrane-bound organelles are called prokaryotic cells. Example: bacteria.

The cells that have a membrane bound nucleus in which DNA is present are called eukaryotic cells. Example: Plant cells.

A stretch of DNA that code for a particular protein and thereby regulate specific genetic trait is called a gene. Genes are present on chromosomes and are carried from one generation to next to maintain the genetic traits.

The features of living beings regulated by the gene are called trait. Example: skin color, eye color, etc.  

6 0
3 years ago
A student designs an experiment to test substances X, Y, and Z, to determine which one is a catalyst for the reaction: A + B ® C
rewona [7]

The answer is option A.

The Student identifies the test tube that stops bubbling first contains the catalyst.

Because Catalyst is a substance which increases the rate of reaction, and the reaction shows that when a product is obtained bubbles formed.

<span>When the student added X, Y and Z to the test tubes. The one which is a catalyst fastened the reaction.</span>

7 0
3 years ago
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