Bruce Wallace (1963) established a laboratory population in which the recessive allele lt was at a frequency of 0.5. He propagated the population for 10 generations, and determined the frequency of lt each generation.

a. True
b. False

Answer:

a. True

Explanation:

Bruce Wallace was a professor emeritus of genetics who performed many population studies. He worked in 1958 at the University of Cornell as a professor of genetics. In 1963, he performed a population study wherein the recessive allele It was at a frequency of 0.5. The population was propagated for 10 generations and the frequency of It for each generation was determined.

The result of this study showed that lt/lt died without reproducing, whereas, individuals with genotype +/+ were normal.

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The location for the SI gene is 3q26.1. What does this information tell you?

is photosynthesis a carbon sink?

Which scenario describes a relationship of mutualism?


A polar bear catches a seal for dinner.


Oxpecker birds eat parasitic ticks off the backs of zebras.


Birds feed off the insects that are stirred up from the grasses as cattle move through.


A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.

Carbon dioxide emissions cause ocean acidification. Ocean acidification reduces coral growth. If ocean acidification continues, corals may become extinct. This is an example of a/an ___________ type of cause of extinction.
A)
population risk
B)
environmental risk
C)
natural catastrophe
D)
genetic risk

What are the monomers of Lipids?

A. Monosacharides

B. Nucleic Acids

C. Amino Acids

D. Fatty Acids

_______metamorphism is when metamorphism occurs near magma._______metamorphism usually results from plates colliding. ______metamorphism creates the most metamorphic rock.​

What is poisonous enough to kill 100,000 turkeys? That’s the question asked by scientists who studied a mass die-off of turkeys in Great Britain. It turned out that all the turkeys had eaten peanuts from Brazil. A fungus was growing on the peanuts. The fungus produced a dangerous poison called aflatoxin. Aflatoxins cause stomach pain, lung failure, cancer, and death in people and animals.

Farmers make a great effort to prevent fungi from growing on their stored crops. In a pile of grain or nuts, fungi have plenty of food and living space. The best way for farmers to prevent fungi from growing is to make sure there is not enough for fungi to survive and grow.

Is the kingdom monera single or multi celled

What could Carl Linnaeus no have used as a method of classification in his taxonomy system ?
A. DNA
B. the habitats of organisms
C. structure of organisms
D. apperance of organisms

Defend it: viruses are not alive. Select the five correct statements. A. They don't make their own membranes. B. They have their own proteins. C. They have no metabolism outside the host cell. D. They don't move. E. They don't respond to their environment. F. They don't have cytoplasm or ribosomes. G. They have only one nucleic acid.

All organisms must regulate_____ by turning genes on and off different cells at different times. In prokaryotic cells, related genes may be organized into_____, which can be turned on and off as a single unit. Eukaryotes have more complex modes of control, including the packing of chromosomes,____(which can produces several mRNAs from a single gene), and the control of translation. An understanding of gene regulation mechanisms has led to several interesting and important applications. For example, the loss of gene regulation can result in cancer, or out-of-control cell growth. And___can produce new live individuals, while___can produce potentially therapeutic stem cells.

What animal is this

Red blood cells are........white blood cells.

1)more numerous than

2)rounder than

3)less numerous than

4)older than


Answer and I will give you brainiliest
​

Amino acids share ____ chemical groups but have ____ side chains that allow for variation. The common groups are amino and ___ groups attached to an ___ carbon. Amino acids link together into a polypeptide via ____ bonds. Each polypeptide has a unique sequence. The repeating subunits interact with each other via ___ bonds to establish ___ structures. Interactions between the side chains determine the ___ structure of the polypeptide. The combination allows for an almost infinite number of possible structures, each with a different function.

What do all members of the swine species always have in common?

They always occupy the same position in the food web no matter where they live.

They are always preyed upon by the same predators.

They always occupy the same habitat at the same time.

They always have the same number and kinds of chromosomes.

A blank cell that becomes specialized during development

Anthropologists have been studying the role of soybean curd andrelated products in the culture of Hong Kong. The researchers interviewpeople about how frequently they eat soybean products, where they eatthem (at home or in restaurants), and during what time of day they eatthem. The researchers also ask people about how they preparesoybean products, where they obtain soybean products, and any beliefsthey might have about soybean products (such as their nutritionalvalue). The data are used to assess the role of soybean products in theculture. The researchers are also considering how their findings relateto global soybean consumption patterns.
1. What is the primary field of anthropology addressed in this research?a. Linguistic anthropologyb. Archaeologyc. Biological anthropologyd. Cultural anthropology2. Which field of anthropology (other than the one you indicated above) is most related to this research?a. Biological Anthropologyb. Archaeologyc. Linguistic Anthropologyd. Cultural Anthropologye. All fields of Anthropology are related to this topic3. How might this research contribute to a comparative anthropological approach?a. This research could be used to compare quinoa consumption in other parts of the world.b. This research could be used to compare biological adaptations across Bolivia.c. This research could be used to compare quinoa consumption in other primate species.d. This research could be used to compare quinoa DNA to other plants.

Which statement is true about the products of cellular respiration?

They contain oxygen.
They contain glucose.
They become the products of photosynthesis.
They become the reactants of photosynthesis.

What were the 2nd & 3rd rovers on Mars called?

What was the 4th rover on Mars called?

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A track and field coach is trying to decide what beverage is the best pre-training beverage for athletes to drink before a daily training session. The coach has chosen three beverages: a soda, a Gatorade, and water for the athletes to drink before training. The coach will then collect data on their performance during the period of time while training.
Afterward, the coach will track the performance of the athletes over an eight week period to see how their performance has changed.


What is the best Hypothesis for the experiment above? Explain why that is the best Hypothesis.

5) If a body cell contains 50 chromosomes, how many
will exist in its gametes?

Answer-25

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What alleles are inside the grid box

Name a plant that has asexual reproduction. Does it have a flower?

What types of mutations are the most harmful

At which intersection is turning left at a red light permitted?

Why is DNA locked in the nucleus of the cell?​

How many codons are in the following mRNA sequence?
AUAUCUAGGCUU*

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Cystic Fibrosis is a genetic disease of the lungs caused by a recessive allele. A man with Cystic Fibrosis marries a woman who does not have Cystic Fibrosis, but her father had the disease. What is the probability of the couple having a child that has Cystic Fibrosis?