BIOLOGY COLLEGE

The gene for hemophilia in humans is present on the X chromosome only. Which inheritance pattern does hemophilia in humans represent?Homozygous
Multiple alleles
Polygenic
Sex linked

i think its sex linked but im not sure.

Answers

Answer 1
Answer: If it is an X-Linked trait, the answer would have to be "Sex-Linked". If it is on the  X chromosome, it is on a sex chromosome.
Answer 2
Answer:

Answer:

Yes, D is correct.

Explanation:

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What was an unintended negative environmental consequence of improved technology in agriculture?A. Farmers went bankrupt purchasing expensive equipment.B. Modern technology allowed for larger expanses of land to become cultivated, so farming took over many natural areas that were important for wildlifeC. Machines took away jobs commonly performed by farm workersD. Machines diminished the quality of the crops.​

Use a dictionary to look up the meaning of the word providence from "Rikki-Tikki-Tavi." Which definition below most closely means providence? A. a unit of a religious order B. divine guidance or care C. a department of knowledge D. a town in the Central Bahamas​

Answers

Answer:

B. Divine guidance or care.

Explanation:

The short story "Rikki-Tikki-Tavi" is by Rudyard Kipling that revolves around the character of a mongoose with the title name. This story narrates how this small animal became a trusted part of the family and also saved them and the house from the dangerous cobra Nag and his family.

In the story, Rikki-tikki had just fought off Nag and Nagina and also Karait when Teddy's parents came. They exclaimed that he had saved their son from being bitten and were grateful for him. Teddy's father claims "he was a providence", which can be fairly taken as being guided or cared for by a divine being.

So, the correct definition closest to the word "providence" is option B. divine guidance or care.

An individual’s mother has blond hair and blue eyes. That individual’s father has brown hair and brown eyes. The individual, however, has brown hair and blue eyes. How did that individual inherit a "mixture" of traits rather than either maternal (blonde hair and blue eyes) OR paternal (brown hair and brown eyes) traits?·maternal and paternal chromosomes sort independently·maternal chromosomes and paternal chromosomes remain together·one of the gametes was missing a chromosome

Answers

Answer:

maternal and paternal chromosomes sort independently

Explanation:

Alleles for a gene are present on a particular locus on homologous chromosomes. Meiosis includes the pairing of homologous chromosomes and their segregation of opposite poles. One member of a homologous pair is paternal and the other is inherited from mother.

The random arrangement of homologous chromosomes at the equator of the cell during metaphase I result in independent segregation of paternal and maternal chromosomes to opposite poles during anaphase I. This leads to new combinations of traits in the progeny which were otherwise not present in either parent.

Examples: I. Fill in the Blank: Use the word bank to fill in the following statements by inserting theletter that best corresponds to the statement or image. Not all the answers will be used Organelles and Cellular Structures A. Nucleus
B. Nucleolus
C. Cajal Bodies
D. Interchromatin Granules
E. Ribosomes
F. Rough ER.
G. ER Peroxisomes
H. Golgi apparatus
I. Mitochondria
J. Chloroplasts
K. Smooth
L. Lysosomes
M. Endosomes
N. P-bodies
O. Stress granulesa. _________
The . . . has two concentric membranes, penetrated by pores to allow transport and making its internal space topologically equivalent to the cytosol.b. ___

Answers

Answer: option A - Nucleus

Explanation:

The Nucleus is a membrane-bound organelle. It has nuclear membrane, which consists of nuclear pores (made up of proteins) through which substances enter or leave the cell (RNA, proteins, etc)

3. Choose the odd one out from each group and give reasons(a) liver, salivary gland, starch, gall bladder
(b) stomach, liver, pancreas, salivary gland

Answers

Answer:

a starch

b salivary gland

Answer:

Starch = does not help the process of ingestion, digestion and absorption

salivary gland = as it does not secret substances from the exocrine gland

Explanation:

Salmon fish hatcheries add a harmless perfume (morpholine) to a stream when they release young fish. When the fish mature, they attract them back to the home stream by using this chemical (in nature the fish smell the unique odors of soil and trees along the home stream). In effect, the hatchery biologist is usingA. the fish's inborn instincts to relocate its own stream.
B. the fish's inborn instincts to relocate its own stream.
C. an experiment based on the ability of fish to learn by trial and error.
D. chemotropisms.

Answers

The options are not complete

Salmon fish hatcheries add a harmless perfume (morpholine) to a stream when they release young fish. When the fish mature, they attract them back to the home stream by using this chemical (in nature the fish smell the unique odors of soil and trees along the home stream). In effect, the hatchery biologist is using

A. the fish's inborn instincts to relocate its own stream.

B. the fish's inborn instincts to relocate its own stream.

C. an experiment based on the ability of fish to learn by trial and error.

D. chemotropisms.

E. Imprinting

Answer:

E. Imprinting

Explanation:

Imprinting is kind of rapid responsive learning occurring at a particular stage in life, whereby the organism establishes a behavioral pattern such as recognition or attraction to it kinship or a substitute.

In the Salmon fish hatcheries(a building where hatching of fish or poultry eggs is artificially controlled for commercial purposes), the addition of a harmless perfume (morpholine) to a stream when they release young fish is a substitute to the Salmon fish kinship. When the fish mature, i.e at a particular stage of their life, they attract them back(a form of attraction to it own kind) to the home stream by using this chemical.

Which argument of Lamarck's theory of evolution was incorrect?Question 1 options:

Mutations give rise to variability


Giraffes' necks got longer over time


Traits can be passed from parent to offspring


Accumulated changes in an individual are passed on to its offspring


All species evolve over time

Answers

Accumulated changes in an individual are passed on to its offspring is the argument of Lamarck's theory of evolution which was incorrect and is option D.

Wisemen discarded the above-mentioned statement and gave the concept of germ cells and somatic cells. Also, he conducted an experiment in which he removed the tails of rats for 22 continuous generations, but it was noticed that the rats of the 23rd generation were still born with a tail.

This proved that the changes were occurring in somatic cells which are not responsible for changes in the offspring. The actual changes in the offspring are due to mutations occurring in the germ cells, so Lamarck's theory was discarded.

To learn more about Lamarck's Theory:

brainly.com/question/12286104
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