9G 2nd midterm exam 2021 22 review - 3 | Baamboozle - Baamboozle

English 21 Public

biology

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What is the possible number of chromosome combinations in the egg cell can be produced by a female human?

2 to the 23rd power = 2^23

B is the dominant allele for big eyes and b is the recessive allele for small eyes.What is the genotypic ratio of a cross between two heterozygous individual?

BB:Bb:bb = 1:2:1

B is the dominant allele for big eyes and b is the recessive allele for small eyes.What is the phenotypic ratio of a cross between two heterozygous individual?

Big eyes:small eyes = 3:1

What is fermentation?

An anaerobic process that takes place in the cytoplasm, which functions to regenerate NAD+, so that glycolysis can be continued to produce a small amount of ATP

What is the meaning of inheritance or heredity?

The passing of traits to the next generation.

What is the dominant genetic disorder that affect the nervous system affecting individual between ages 30-50 years old?

Huntington's disease

Is this a dominant or recessive genetic disorder? How do you know?

Recessive genetic disorder, because there are carriers.

How many affected female(s) is/are there in generation II? Name the individual(s).

one. II-2

Describe the genotype of individual II-3.

Homozygous dominant

Deduce the genotypes of the couple in generation I.

both were heterozygous

If individual III-1 gets married with a homozygous dominant individual, how many percent of chance of offspring will be a carrier?

50%

If individual III-4 gets married with a homozygous dominant individual, how many percent of chance that the offspring will be affected by the disorder?

Apoptosis is a programmed cell death that happens in both animals and plants. True or false?

True

Crossing over happens in which phase of meiosis?

Prophase I

Which phase is this?

anaphase 2

A fruit fly has 8 chromosomes; how many possible types of fertilized eggs could be formed by the crossing of two fruit flies?

2^4 x 2^4 = 256