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QveST [7]
3 years ago
5

Frederick Griffith made a scientific discovery in 1928. Which best describes the knowledge about genetics before 1928?

Biology
2 answers:
zubka84 [21]3 years ago
8 0
Frederick Griffith's discovery on the theory of genetics is credited to his experiment on mice. He subjected them to different strains of pneumonia bacteria. He concluded that there is an unidentified force that leads to the formation of different strains from what the mice were subjected to. This leads to the discovery of DNA, the carrier of traits. Scientist before did not know how the trait is passed on not until Griffith's experiment.
Anastaziya [24]3 years ago
8 0

Answer:

Scientists did not know how traits were inherited.

Explanation:

APEX

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CAN someone please help asap
kondor19780726 [428]

Answer:

Explanation:

Xylem

8 0
3 years ago
Part 1: crossing beak color and tail-feather length cross a yyll (heterozygous parent with dominant traits) with yyll (homozygou
Luba_88 [7]
Since you forgot to put capital letters i assume it's like this:

1)A <span>Cross between YyLl (heterozygous parent with dominant traits) and yyll (homozygous parent with recessive traits).

</span><span> 2)offspring YyLl: 400, Yyll: 100, yyLl: 100 and yyll: 400

</span>The recombinant offspring are allele combinations that are not directly inherited from the parents.
The parents combinations:<span>YyLl and yyll,
</span>The recombinant combinations: Yyll and yyLl
The other types are exacly like the parents so they are not recombinant.

answer: Yyll and yyLl


3 0
3 years ago
Several students were having a discussion about the role of chromosomes in inheriting traits.
serious [3.7K]

Answer:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.

Explanation:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  - this is true. Prior to cell division, DNA molecules are organized into large structures called chromosomes. Specific regions of a DNA molecule are called genes. These dictate specific proteins which control our traits.

Genes contain thousands of chromosomes that carry specific information about building proteins for a particular trait.  - this is false - genes are segments of DNA that control specific traits by dictating the structure and functions of proteins. Chromosomes contain thousands of genes

Chromosomes are small sections of DNA that contain specific information about a trait to build proteins that people inherit. The thousands of different chromosomes passed from the parents allow for humans to look uniquely different. - this is false - chromosomes are large structures, genes are the relatively small sections of DNA. Humans have 23 pairs of chromosomes, not thousands.

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.  - this is true. In diploid organisms, like humans, have two copies of each chromosome. These chromosomes contain slightly different versions of genes, which make us unique.

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3 years ago
What property of water best helps aquatic life survive in lakes during the winter?
miss Akunina [59]

Water is less dense as a solid than as a liquid the answer is D


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3 years ago
If an individual's gametes are exposed to x-rays before being passed to offspring what will most likely happen?
sleet_krkn [62]
The individuals gametes cells would be damaged, possibly taking his ability to have offspring.
8 0
4 years ago
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