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babunello [35]
3 years ago
15

What is the first generation in a genetic cross called?

Biology
2 answers:
Alisiya [41]3 years ago
8 0
The first generation in a genetic cross is called B. F1 generation. Then the next generation is known as the F2 generation. Your answer is B. F1 generation
xeze [42]3 years ago
3 0
 <span>An F1 hybrid (or Filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types.F1 hybrids are used in genetics and selective breeding. </span>
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Match the reproductive structures based on their function and the system to which they belong.
Rom4ik [11]

Answer:

Female reproductive system is comprised of ovary, fallopian tubes, uterus, and vagina. In humans, female have two ovaries that release egg at the time of ovulation. The egg is released in fallopian tube, where it gets fertilized with male sperm to form zygote. The uterus is nurturing organ for developing zygote till the delivery of fetus. The vagina acts as opening for the uterus.

Male reproductive system is comprised of testis, vas deference, urethra, and p3nis. Testis is responsible for the synthesis of sperms or male gametes. From testes, sperms are transported to vas deference via epididymis and ejaculated through urethra.

Explanation:

I looked it up

6 0
2 years ago
What human activity destroys the most natural animal habitats
Alisiya [41]
Habitat<span> destruction is the alteration of a </span><span>natural habitat which destroys many homes for animals.</span>
8 0
3 years ago
Read 2 more answers
The idea that changes in Earth orbit lead to climate change is called _________
horsena [70]
A. Milankovitch Theory
5 0
3 years ago
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For each population description, identify which Hardy-Weinberg assumption is violated?
zavuch27 [327]

Answer:

4. A large and isolated population of squirrels in a relatively stable environment in which no genetic mutations are occurring and mating between males and females is random.

Explanation:

1. A small and isolated population of seals living in a stable environment with no genetic mutations.❌

1. false

Hardy-Weinberg assumption is not violated for a small population as seen in this case.

2. A large population of fish where females mate with males based on size.❌

false

Hardy-Weinberg assumption is not violated for an instance where mating is not random as seen in this scenario.

3. A population of birds with no genetic mutations that often mate with members of neighboring bird populations.❌

False

Hardy-Weinberg assumption is not violated for where gene flow is seen among population in this scenario.

4. A large and isolated population of squirrels in a relatively stable environment in which no genetic mutations are occurring and mating between males and females is random.✔

True

Hardy-Weinberg assumption is violated for in this situation due to large population size.

5. A small population of spiders living in an environment that strongly favors larger individuals.❌

false

Hardy-Weinberg assumption is violated for a small population and natural selection occurring as its obvious in this case.

There are five primary Hardy-Weinberg assumptions:

A. no mutation,

B. random mating,

C. No gene flow,

D. infinite population size,

E. No selection.

If the assumptions are exempted in a gene, the population of that gene might undergo evolution causing a resultant change in the gene's allele frequencies.

5 0
3 years ago
An organism has 40 chromosomes in each body cell. How many chromosomes are in each of the organisms sex cells?
melomori [17]
The chromosomes in the sex cells would be half the chromosomes in the body cells; so since each body cell has 40 <span>chromosomes and half of that is 20, there's your answer. It's B. 20</span>
3 0
3 years ago
Read 2 more answers
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